can any one tell me why a map would be named "index" and the file is a document?
I'm guessing you right clicked, save as... That wont work, you need to actually click the link and let the php process the download for you.
The map you're trying to download is corrupted in some way. Xeno(U) messed up when uploading or something because the same thing happens to me when I try to download Alien: Infestation.
whenever i try to dl something here php saves the file as *.php and is unopenable by any of my inferior windows 2000 technology. i just right click on the link and choose save target as and it works fine.