I have recently go the game and am having trouble installing the patch. I have tried using both the American/Australia and the European versions, niether wil work.
I'm pretty sure that my game is the "UBISOFT" version (as it has the lable on the box). But the American patch seems to install farther than th Eropean one does.

the installer gets to 17% done and then stopps and says it could install because it couldn't find the right file. i don't want to have to spend almost $3 per minute on a phone call to Ubsoft Australia to find out that they can't do anything. please help

What file is missing?

Did you try reinstalling the entire game? Also, it's possible that attempting to install both patches might mess something up. You might also try e-mailing Ubisoft, rather than using the phone, since they can't bill for emails.