Pardon me for not directly answering your question but: hold on to the old drive. There are tools on the Linux Ultimate Boot CD that can attempt recovery (download it free, burn the image to a blank disc - make sure you get the official source, try Wikipedia for a safe link?). Best ask an expert though, rather than risk deleting what (if anything) you have left on the old drive.

File recovery has always been a disappointment for me. There must be tricks that only professionals know.