Recovering Information from a Hard Drive

Hey guys, I recently tried to use a slipstreamed version of Windows XP for a fresh install and not thinking, I left my drive that had all the backups and all my personal files plugged into the system. I tried running the disk several times and both times it just tried copying a bunch of files and I couldnt tell where to so I went back to my original XP Pro disk. Now I have a working version of Windows XP but when I tried going to my drive with all the backups to restore my outlook files, etc. I got a window that says the drive needs to be formatted. I went into properties and it doesnt read the drives size of 160gb, instead it says 0 bytes used out of 0 bytes available.

I have no idea what the slipstreamed disc did to that drive but I have over 100gb of invaluable data on there and I need a way to get it back. Does anyone know some software that could help me do this or what I can to get retrieve my files?

 

that is not the problem, t drive is showing up as RAW and unformatted. Its not a SP2 related problem because i already have it installed. Also, I downloaded Stellar Phoenix File Recovery 1.0 to get some of the files off the RAW partition. The only problem with this is they dont recover all of the files since they only support like 260 extensions. If there is better software that could recover all file types, please let me know. Thanks!