If you're interested in hacking the ROM you should PM i90east (or IM him, not sure if he's still around). He's done a lot of hacking and has a stellar expert version of the game made (on release 3 or so now).

Here's the threads that he used when working on the hacks:
http://www.eyesonff.com/forums/showthread.php?t=37987
http://www.eyesonff.com/forums/showthread.php?t=44818
http://www.eyesonff.com/forums/showthread.php?t=50626