well most programs that recover the files need the same exact drive size to copy to.
i messed up my 500GB drive once like that with a quick format. every program i tried i needed a drive of the same size or bigger to recover to. ended up buying another 500gb drive to copy to.
just for you info DO NOT COPY ANYTHING ONTO THE DRIVE UNTIL YOU HAVE RECOVERD
7970 3GB *Unlocked* = 8 Threads
5770 1GB OCed = 2 Threads