In that case load the program into Ollydbg and start scrolling upward, you'll eventually find some dbp function calls. Put a breakpoint on them, hit F9 and the debugger will automatically stop when it gets to that instruction.
At the bottom of my Audio Plugin post I posted an example program that uses trigger zones, here's the program block (the do-loop block to be exact) in asm code as displayed in the debugger.
01420875 BB 043D8B06 MOV EBX,DBProSet.?GetDisplayFPS@@YAHXZ
0142087A FFD3 CALL EBX
0142087C A3 E8051000 MOV DWORD PTR DS:[1005E8],EAX
01420881 C705 30EB4000 2A>MOV DWORD PTR DS:[40EB30],2A
0142088B A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420890 3D 00000000 CMP EAX,0
01420895 0F85 FD040000 JNZ 01420D98
0142089B A1 E8051000 MOV EAX,DWORD PTR DS:[1005E8]
014208A0 A3 20061000 MOV DWORD PTR DS:[100620],EAX
014208A5 C705 30EB4000 2A>MOV DWORD PTR DS:[40EB30],2A
014208AF A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
014208B4 3D 00000000 CMP EAX,0
014208B9 0F85 D9040000 JNZ 01420D98
014208BF BB DF226701 MOV EBX,DBProCam.?GetXPositionEx@@YAKXZ
014208C4 FFD3 CALL EBX
014208C6 A3 D8051000 MOV DWORD PTR DS:[1005D8],EAX
014208CB C705 30EB4000 2B>MOV DWORD PTR DS:[40EB30],2B
014208D5 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
014208DA 3D 00000000 CMP EAX,0
014208DF 0F85 B3040000 JNZ 01420D98
014208E5 A1 D8051000 MOV EAX,DWORD PTR DS:[1005D8]
014208EA 50 PUSH EAX
014208EB BB DE5B0010 MOV EBX,dbprocor.?CastFtoL@@YAKM@Z
014208F0 FFD3 CALL EBX
014208F2 5B POP EBX
014208F3 A3 F0051000 MOV DWORD PTR DS:[1005F0],EAX
014208F8 A1 F0051000 MOV EAX,DWORD PTR DS:[1005F0]
014208FD A3 14061000 MOV DWORD PTR DS:[100614],EAX
01420902 C705 30EB4000 2B>MOV DWORD PTR DS:[40EB30],2B
0142090C A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420911 3D 00000000 CMP EAX,0
01420916 0F85 7C040000 JNZ 01420D98
0142091C BB E8226701 MOV EBX,DBProCam.?GetYPositionEx@@YAKXZ
01420921 FFD3 CALL EBX
01420923 A3 D8051000 MOV DWORD PTR DS:[1005D8],EAX
01420928 C705 30EB4000 2C>MOV DWORD PTR DS:[40EB30],2C
01420932 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420937 3D 00000000 CMP EAX,0
0142093C 0F85 56040000 JNZ 01420D98
01420942 A1 D8051000 MOV EAX,DWORD PTR DS:[1005D8]
01420947 50 PUSH EAX
01420948 BB DE5B0010 MOV EBX,dbprocor.?CastFtoL@@YAKM@Z
0142094D FFD3 CALL EBX
0142094F 5B POP EBX
01420950 A3 F0051000 MOV DWORD PTR DS:[1005F0],EAX
01420955 A1 F0051000 MOV EAX,DWORD PTR DS:[1005F0]
0142095A A3 18061000 MOV DWORD PTR DS:[100618],EAX
0142095F C705 30EB4000 2C>MOV DWORD PTR DS:[40EB30],2C
01420969 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
0142096E 3D 00000000 CMP EAX,0
01420973 0F85 1F040000 JNZ 01420D98
01420979 BB F1226701 MOV EBX,DBProCam.?GetZPositionEx@@YAKXZ
0142097E FFD3 CALL EBX
01420980 A3 D8051000 MOV DWORD PTR DS:[1005D8],EAX
01420985 C705 30EB4000 2D>MOV DWORD PTR DS:[40EB30],2D
0142098F A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420994 3D 00000000 CMP EAX,0
01420999 0F85 F9030000 JNZ 01420D98
0142099F A1 D8051000 MOV EAX,DWORD PTR DS:[1005D8]
014209A4 50 PUSH EAX
014209A5 BB DE5B0010 MOV EBX,dbprocor.?CastFtoL@@YAKM@Z
014209AA FFD3 CALL EBX
014209AC 5B POP EBX
014209AD A3 F0051000 MOV DWORD PTR DS:[1005F0],EAX
014209B2 A1 F0051000 MOV EAX,DWORD PTR DS:[1005F0]
014209B7 A3 1C061000 MOV DWORD PTR DS:[10061C],EAX
014209BC C705 30EB4000 2D>MOV DWORD PTR DS:[40EB30],2D
014209C6 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
014209CB 3D 00000000 CMP EAX,0
014209D0 0F85 C2030000 JNZ 01420D98
014209D6 B8 01000000 MOV EAX,1
014209DB 50 PUSH EAX
014209DC BB 765B0010 MOV EBX,dbprocor.?CastLtoF@@YAKH@Z
014209E1 FFD3 CALL EBX
014209E3 5B POP EBX
014209E4 A3 DC051000 MOV DWORD PTR DS:[1005DC],EAX
014209E9 B8 01000000 MOV EAX,1
014209EE 50 PUSH EAX
014209EF BB 765B0010 MOV EBX,dbprocor.?CastLtoF@@YAKH@Z
014209F4 FFD3 CALL EBX
014209F6 5B POP EBX
014209F7 A3 E0051000 MOV DWORD PTR DS:[1005E0],EAX
014209FC A1 E0051000 MOV EAX,DWORD PTR DS:[1005E0]
01420A01 50 PUSH EAX
01420A02 A1 DC051000 MOV EAX,DWORD PTR DS:[1005DC]
01420A07 50 PUSH EAX
01420A08 B8 00000000 MOV EAX,0
01420A0D 50 PUSH EAX
01420A0E BB FD2B6701 MOV EBX,DBProCam.?ControlWithArrowKeys@@YAXHMM>
01420A13 FFD3 CALL EBX
01420A15 5B POP EBX
01420A16 5B POP EBX
01420A17 5B POP EBX
01420A18 C705 30EB4000 2F>MOV DWORD PTR DS:[40EB30],2F
01420A22 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420A27 3D 00000000 CMP EAX,0
01420A2C 0F85 66030000 JNZ 01420D98
01420A32 B8 01000000 MOV EAX,1
01420A37 50 PUSH EAX
01420A38 B8 01000000 MOV EAX,1
01420A3D 50 PUSH EAX
01420A3E BB C5350010 MOV EBX,dbprocor.?SetCursor@@YAXHH@Z
01420A43 FFD3 CALL EBX
01420A45 5B POP EBX
01420A46 5B POP EBX
01420A47 C705 30EB4000 30>MOV DWORD PTR DS:[40EB30],30
01420A51 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420A56 3D 00000000 CMP EAX,0
01420A5B 0F85 37030000 JNZ 01420D98
01420A61 A1 20061000 MOV EAX,DWORD PTR DS:[100620]
01420A66 50 PUSH EAX
01420A67 A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420A6C 50 PUSH EAX
01420A6D BB F427BA06 MOV EBX,DBProTex.?Str@@YAKKH@Z
01420A72 FFD3 CALL EBX
01420A74 A3 08061000 MOV DWORD PTR DS:[100608],EAX
01420A79 5B POP EBX
01420A7A 5B POP EBX
01420A7B C705 30EB4000 31>MOV DWORD PTR DS:[40EB30],31
01420A85 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420A8A 3D 00000000 CMP EAX,0
01420A8F 0F85 03030000 JNZ 01420D98
01420A95 A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420A9A 50 PUSH EAX
01420A9B B8 40C71701 MOV EAX,117C740 ; ASCII "FPS: "
01420AA0 50 PUSH EAX
01420AA1 A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420AA6 50 PUSH EAX
01420AA7 BB 2E560010 MOV EBX,dbprocor.?AddSSS@@YAKKKK@Z
01420AAC FFD3 CALL EBX
01420AAE 5B POP EBX
01420AAF A3 0C061000 MOV DWORD PTR DS:[10060C],EAX
01420AB4 58 POP EAX
01420AB5 58 POP EAX
01420AB6 A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420ABB 50 PUSH EAX
01420ABC BB 08360010 MOV EBX,dbprocor.?PrintS@@YAXPAD@Z
01420AC1 FFD3 CALL EBX
01420AC3 5B POP EBX
01420AC4 C705 30EB4000 31>MOV DWORD PTR DS:[40EB30],31
01420ACE A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420AD3 3D 00000000 CMP EAX,0
01420AD8 0F85 BA020000 JNZ 01420D98
01420ADE A1 14061000 MOV EAX,DWORD PTR DS:[100614]
01420AE3 50 PUSH EAX
01420AE4 A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420AE9 50 PUSH EAX
01420AEA BB F427BA06 MOV EBX,DBProTex.?Str@@YAKKH@Z
01420AEF FFD3 CALL EBX
01420AF1 A3 08061000 MOV DWORD PTR DS:[100608],EAX
01420AF6 5B POP EBX
01420AF7 5B POP EBX
01420AF8 C705 30EB4000 32>MOV DWORD PTR DS:[40EB30],32
01420B02 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420B07 3D 00000000 CMP EAX,0
01420B0C 0F85 86020000 JNZ 01420D98
01420B12 A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420B17 50 PUSH EAX
01420B18 B8 30C71701 MOV EAX,117C730 ; ASCII "X: "
01420B1D 50 PUSH EAX
01420B1E A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420B23 50 PUSH EAX
01420B24 BB 2E560010 MOV EBX,dbprocor.?AddSSS@@YAKKKK@Z
01420B29 FFD3 CALL EBX
01420B2B 5B POP EBX
01420B2C A3 0C061000 MOV DWORD PTR DS:[10060C],EAX
01420B31 58 POP EAX
01420B32 58 POP EAX
01420B33 A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420B38 50 PUSH EAX
01420B39 BB 08360010 MOV EBX,dbprocor.?PrintS@@YAXPAD@Z
01420B3E FFD3 CALL EBX
01420B40 5B POP EBX
01420B41 C705 30EB4000 32>MOV DWORD PTR DS:[40EB30],32
01420B4B A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420B50 3D 00000000 CMP EAX,0
01420B55 0F85 3D020000 JNZ 01420D98
01420B5B A1 18061000 MOV EAX,DWORD PTR DS:[100618]
01420B60 50 PUSH EAX
01420B61 A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420B66 50 PUSH EAX
01420B67 BB F427BA06 MOV EBX,DBProTex.?Str@@YAKKH@Z
01420B6C FFD3 CALL EBX
01420B6E A3 08061000 MOV DWORD PTR DS:[100608],EAX
01420B73 5B POP EBX
01420B74 5B POP EBX
01420B75 C705 30EB4000 33>MOV DWORD PTR DS:[40EB30],33
01420B7F A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420B84 3D 00000000 CMP EAX,0
01420B89 0F85 09020000 JNZ 01420D98
01420B8F A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420B94 50 PUSH EAX
01420B95 B8 20C71701 MOV EAX,117C720 ; ASCII "Y: "
01420B9A 50 PUSH EAX
01420B9B A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420BA0 50 PUSH EAX
01420BA1 BB 2E560010 MOV EBX,dbprocor.?AddSSS@@YAKKKK@Z
01420BA6 FFD3 CALL EBX
01420BA8 5B POP EBX
01420BA9 A3 0C061000 MOV DWORD PTR DS:[10060C],EAX
01420BAE 58 POP EAX
01420BAF 58 POP EAX
01420BB0 A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420BB5 50 PUSH EAX
01420BB6 BB 08360010 MOV EBX,dbprocor.?PrintS@@YAXPAD@Z
01420BBB FFD3 CALL EBX
01420BBD 5B POP EBX
01420BBE C705 30EB4000 33>MOV DWORD PTR DS:[40EB30],33
01420BC8 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420BCD 3D 00000000 CMP EAX,0
01420BD2 0F85 C0010000 JNZ 01420D98
01420BD8 A1 1C061000 MOV EAX,DWORD PTR DS:[10061C]
01420BDD 50 PUSH EAX
01420BDE A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420BE3 50 PUSH EAX
01420BE4 BB F427BA06 MOV EBX,DBProTex.?Str@@YAKKH@Z
01420BE9 FFD3 CALL EBX
01420BEB A3 08061000 MOV DWORD PTR DS:[100608],EAX
01420BF0 5B POP EBX
01420BF1 5B POP EBX
01420BF2 C705 30EB4000 34>MOV DWORD PTR DS:[40EB30],34
01420BFC A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420C01 3D 00000000 CMP EAX,0
01420C06 0F85 8C010000 JNZ 01420D98
01420C0C A1 08061000 MOV EAX,DWORD PTR DS:[100608]
01420C11 50 PUSH EAX
01420C12 B8 10C71701 MOV EAX,117C710 ; ASCII "Z: "
01420C17 50 PUSH EAX
01420C18 A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420C1D 50 PUSH EAX
01420C1E BB 2E560010 MOV EBX,dbprocor.?AddSSS@@YAKKKK@Z
01420C23 FFD3 CALL EBX
01420C25 5B POP EBX
01420C26 A3 0C061000 MOV DWORD PTR DS:[10060C],EAX
01420C2B 58 POP EAX
01420C2C 58 POP EAX
01420C2D A1 0C061000 MOV EAX,DWORD PTR DS:[10060C]
01420C32 50 PUSH EAX
01420C33 BB 08360010 MOV EBX,dbprocor.?PrintS@@YAXPAD@Z
01420C38 FFD3 CALL EBX
01420C3A 5B POP EBX
01420C3B C705 30EB4000 34>MOV DWORD PTR DS:[40EB30],34
01420C45 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420C4A 3D 00000000 CMP EAX,0
01420C4F 0F85 43010000 JNZ 01420D98
01420C55 BB F2650010 MOV EBX,dbprocor.?Sync@@YAXXZ
01420C5A FFD3 CALL EBX
01420C5C C705 30EB4000 35>MOV DWORD PTR DS:[40EB30],35
01420C66 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420C6B 3D 00000000 CMP EAX,0
01420C70 0F85 22010000 JNZ 01420D98
01420C76 A1 1C061000 MOV EAX,DWORD PTR DS:[10061C]
01420C7B 50 PUSH EAX
01420C7C A1 18061000 MOV EAX,DWORD PTR DS:[100618]
01420C81 50 PUSH EAX
01420C82 A1 14061000 MOV EAX,DWORD PTR DS:[100614]
01420C87 50 PUSH EAX
01420C88 B8 01000000 MOV EAX,1
01420C8D 50 PUSH EAX
01420C8E BB 501A3704 MOV EBX,AudioDLL.?CheckTriggerZone@@YAXHHHH@Z
01420C93 FFD3 CALL EBX
01420C95 5B POP EBX
01420C96 5B POP EBX
01420C97 5B POP EBX
01420C98 5B POP EBX
01420C99 C705 30EB4000 37>MOV DWORD PTR DS:[40EB30],37
01420CA3 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420CA8 3D 00000000 CMP EAX,0
01420CAD 0F85 E5000000 JNZ 01420D98
01420CB3 BB 7E23CE06 MOV EBX,DBProInp.?EscapeKey@@YAHXZ
01420CB8 FFD3 CALL EBX
01420CBA A3 E8051000 MOV DWORD PTR DS:[1005E8],EAX
01420CBF C705 30EB4000 39>MOV DWORD PTR DS:[40EB30],39
01420CC9 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420CCE 3D 00000000 CMP EAX,0
01420CD3 0F85 BF000000 JNZ 01420D98
01420CD9 B8 01000000 MOV EAX,1
01420CDE 50 PUSH EAX
01420CDF A1 E8051000 MOV EAX,DWORD PTR DS:[1005E8]
01420CE4 8BD8 MOV EBX,EAX
01420CE6 5A POP EDX
01420CE7 B8 00000000 MOV EAX,0
01420CEC 3BDA CMP EBX,EDX
01420CEE 0F94C0 SETE AL
01420CF1 A3 EC051000 MOV DWORD PTR DS:[1005EC],EAX
01420CF6 A1 EC051000 MOV EAX,DWORD PTR DS:[1005EC]
01420CFB 3D 00000000 CMP EAX,0
01420D00 0F84 61000000 JE 01420D67
01420D06 B8 01000000 MOV EAX,1
01420D0B 50 PUSH EAX
01420D0C BB 20143704 MOV EBX,AudioDLL.?DeleteAudio@@YAXH@Z
01420D11 FFD3 CALL EBX
01420D13 5B POP EBX
01420D14 C705 30EB4000 3A>MOV DWORD PTR DS:[40EB30],3A
01420D1E A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420D23 3D 00000000 CMP EAX,0
01420D28 0F85 6A000000 JNZ 01420D98
01420D2E E9 65000000 JMP 01420D98
01420D33 C705 30EB4000 3B>MOV DWORD PTR DS:[40EB30],3B
01420D3D A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420D42 3D 00000000 CMP EAX,0
01420D47 0F85 4B000000 JNZ 01420D98
01420D4D C705 30EB4000 39>MOV DWORD PTR DS:[40EB30],39
01420D57 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420D5C 3D 00000000 CMP EAX,0
01420D61 0F85 31000000 JNZ 01420D98
01420D67 BB 041D0010 MOV EBX,dbprocor.?ProcessMessages@@YAKXZ
01420D6C FFD3 CALL EBX
01420D6E 3D 01000000 CMP EAX,1
01420D73 0F84 1F000000 JE 01420D98
01420D79 ^E9 F7FAFFFF JMP 01420875
01420D7E C705 30EB4000 29>MOV DWORD PTR DS:[40EB30],29
01420D88 A1 2CEB4000 MOV EAX,DWORD PTR DS:[40EB2C]
01420D8D 3D 00000000 CMP EAX,0
01420D92 0F85 00000000 JNZ 01420D98
01420D98 A1 B0E84000 MOV EAX,DWORD PTR DS:[40E8B0]
01420D9D 3D 00000000 CMP EAX,0
01420DA2 0F85 07000000 JNZ 01420DAF
01420DA8 BB 0E1D0010 MOV EBX,dbprocor.?Quit@@YAKXZ
01420DAD FFD3 CALL EBX
From this you could rebuild (by translating) the code. By translating I mean converting the ASM to DBP assuming you understand both langs.