Since you say you formatted your drive you could always get a program that recovers lost data. Their are some good ones that will recover your pics. I knwo of a few that I can't post here as that would be an endorsment but if you type into yahoo search engine the words (recover lost data) you will find plenty that do this even on formatted drives.

the other suggestion is google search or yahoo search the name of the pic only under the "images" catagory. like where it says search the web their are options to search groups, search images etc.

Depends on how badly you want these back. good luck to you