Software Needed:
**
Qwix 1.01**
XBEPatcher** FTP Program of your choice
1). FTP the files from the Game Disc to your PC Hard Drive.
2). Using Qwix, 'Create ISO' with 'Local Folder' as your source.
3). Using Qwix again, Convert ISO. (I had to do this step, first attempts without converting ISO wouldnt work for me..)
4). Using Qwix yet again, Under 'Load ISO' extract the ISO to a folder. (At this point you can delete your ISO's)
5). Run XBEPatcher in the THAW folder.
You now have a working copy of THAW on your PC HD. You can either use Qwix to convert to ISO and transfer it with Avalaunch, or just FTP it to your XBox. This does seem long and somewhat time consuming (making, converting, extracting and making a ISO), but I've had zero problems with my backup this way.