Iris Action

Hey nerds, why doesn't this code work?
http://pastie.org/private/29v95lljikryiiehtdpoq

I'm trying to extract images from a game pack file. It worked fine on the trial/demo version of the game, but fails on the full version of the game [ https://thepiratebay.se/torrent/7512447/ ]

I really don't understand.

Posts full page of dense, disgusting C code with manual string handling
"DOESN'T WORK"
no error message
no explanation
no test data
^{HAX MY ANUS}