This sounds like Bond1 Character Pack better known as Pack 4 at TGC if this is the case you stuck your texture in the wrong directory or you didnt make a new fpe file pointing towards your new texture or both..
Bond1 Pack is located in this directory
Crogram FilesThe Game CreatorsFPS CreatorFilesentitybankModel Pack 4Characters
Suggestion is copy the surgeon zombie fpe file make a new fpe file and past all the info from the previous file into your new file.... make the change in your texture line it should look like this until you change it
;visualinfo
textured = surgeonzombie_d2.dds
just make sure it has the proper name of your new texture file
then also make sure your texture file is in the same directory then I would go ahead and test
I hope this helps.... If it isnt this pack let me know and ill see what I can do to help more...
Have you downloaded your CLiPs today.