Are you accepting the risks involved with DIY?
If so:
You can try FTKImager
http://accessdata.com/support/product-downloads . Add drive, expand root & then look at the location the file was & see if its listed with a red cross?
What OS are you using? If Win7 Ultimate then you could try previous versions.
If other versions on Win7 then try Shadow Explorer
http://www.shadowexplorer.com/Both the above options are free, others you can try are
http://www.r-undelete.com/ demo if it thats finds your files then you would need to purchase the software to be able to save the files.
Hope this helps
Loki