If you are looping through then you need to unshow the other huds or all you will see is the one on top. (appearing static)
Try this...
;Dar13's Scripts
;Header
desc = animated HUD
;Triggers
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film1.png,hudname=hud1,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film2.png,hudname=hud2,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film3.png,hudname=hud3,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film4.png,hudname=hud4,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film5.png,hudname=hud5,hudhide=1,hudmake=display,state=1
:state=1:timerstart,hudunshow=hud1,hudunshow=hud2,hudunshow=hud3,hudunshow=hud4,hudunshow=hud5,state=2
:state=2,timergreater=100:hudshow=hud1,state=3
:state=3,timergreater=200:hudshow=hud2,state=4
:state=4,timergreater=300:hudshow=hud3,state=5
:state=5,timergreater=400:hudshow=hud4,state=6
:state=6,timergreater=500:hudshow=hud5,state=1
;End of Script
The problem there though is that we did not use a hud0 for 0 to 100 on the timer, so it shoud have been like so to loop it...
;Dar13's Scripts
;Header
desc = animated HUD
;Triggers
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film1.png,hudname=hud1,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film2.png,hudname=hud2,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film3.png,hudname=hud3,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film4.png,hudname=hud4,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film5.png,hudname=hud5,hudhide=1,hudmake=display,state=1
:state=1:timerstart,hudshow=hud1,hudunshow=hud2,hudunshow=hud3,hudunshow=hud4,hudunshow=hud5,state=2
:state=2,timergreater=100:hudshow=hud2,state=3
:state=3,timergreater=200:hudshow=hud3,state=4
:state=4,timergreater=300:hudshow=hud4,state=5
:state=5,timergreater=400:hudshow=hud5,state=1
;End of Script
...because we don't want a void at the start.
Or you could try this if that doesn't work.... (remove the hud prior to the one displayed)
;Dar13's Scripts
;Header
desc = animated HUD
;Triggers
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film1.png,hudname=hud1,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film2.png,hudname=hud2,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film3.png,hudname=hud3,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film4.png,hudname=hud4,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film5.png,hudname=hud5,hudhide=1,hudmake=display,state=1
:state=1:timerstart,hudshow=hud1,hudunshow=hud5,state=2
:state=2,timergreater=100:hudshow=hud2,hudunshow=hud1,state=3
:state=3,timergreater=200:hudshow=hud3,hudunshow=hud2,state=4
:state=4,timergreater=300:hudshow=hud4,hudunshow=hud3,state=5
:state=5,timergreater=400:hudshow=hud5,hudunshow=hud4,state=1
;End of Script
but then we have another problem of not waiting for the last image so...
;Dar13's Scripts
;Header
desc = animated HUD
;Triggers
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film1.png,hudname=hud1,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film2.png,hudname=hud2,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film3.png,hudname=hud3,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film4.png,hudname=hud4,hudhide=1,hudmake=display
:state=0:hudreset,hudx=50,hudy=50,hudimagefine=gamecore/film/film5.png,hudname=hud5,hudhide=1,hudmake=display,state=1
:state=1:timerstart,hudshow=hud1,hudunshow=hud5,state=2
:state=2,timergreater=100:hudshow=hud2,hudunshow=hud1,state=3
:state=3,timergreater=200:hudshow=hud3,hudunshow=hud2,state=4
:state=4,timergreater=300:hudshow=hud4,hudunshow=hud3,state=5
:state=5,timergreater=400:hudshow=hud5,hudunshow=hud4,state=6
:state=6,timergreater=500:state=1
;End of Script
The last one should loop.