Ok first of all do not download anything except recovery software, preferably to a different drive.

Second: I have had great results using a tool called Restoration, but you have to know the filenames or part of them for using it. Link is in this post, as well as links to other recovery software: http://www.gnutellaforums.com/open-d...tml#post172144

If that doesn't work then there are links to others here: http://www.gnutellaforums.com/open-d...ry-advice.html