i accidentally moved and overwrote an image, any technos who know if somewhere in the CSI world of hidden files, the file is still embedded?

I'm not expert, If was on your PC try your temp files, or deleted files bin. But if you have definatly overwritten it as opposed to deleted then there may be no hope. There are many image recovery programmes out there, try a forum search in here as it has been talked about a few times, but they can only recover deleted files and not over written files.

Yeah - I think overwriting a file, you're now S.O.L.