Try "Recover My Files"
You'll have to find a pro version on your own.. or go legit and pay for it :P..
Be prepared to search through a ton of [DIR00XXX] folders :P, if you havn't used the partition/drive much since then you should be able to do it.
If you physically cannot access the drive you must do a quick format that erases the MTF but all you're data is still on their.. Otherwise head on out and find a nice live cd.
Good luck mate.. Hope you get most of it back. Least now you know better for next time