Hmm...Maybe you meant that you formatted the first 2 in the process as well.
Well, if that's the case there are data recovery tools out there. Most of the ones I know of are for Windows though (just go to www.downloads.com
and search for 'recover deleted files' or something like that). Your best bet would be if you have another hard drive laying around, throw windows on it, and make the mest up hard drive the slave. Then run the recovery program on it.
Your biggest problem will be that if you didn't defrag the drive before repartitioning it, much of the data could lie in what is now your linux paritions and most of the recovery programs won't be able to touch those. I did use one recovery program a couple of years ago that could do this though, unfortunately I don't remember it's name.
Just do your best not to install or write anything to the hard drive until you get your file as once the data segment is overwritten, the file (for all intents and purposes) will be gone permanently.