(I'm asking this for a friend of mine as I'm trying to help him with this problem over remote desktop, so if any details are needed, just ask and I will get them). Two entire hard disks were encrypted with TrueCrypt, and then decrypted with a recovery CD created on a different computer, but with the same password. Windows then detected the disks as "RAW", instead of the filesystem it was supposed to be (FAT or NTFS, not sure). fdisk on an Ubuntu virtual machine shows one FAT16 partition spanning one entire drive. Various partition recovery programs such as TestDisk were run on the drives with no success. I think the file data itself is still there, but the partition or filetables are corrupt or missing. We've tried altering the partition tables on the drives with no success. Any help would be very, very greatly appreciated.
Currently, we are running TestDisk on one mounted virtual drive in Windows. The other hard disk will not mount, but this one does. The hard disk seems to still be encrypted, and TestDisk found a few NTFS partitions, and is still scanning currently. I'll update this as the situation changes.