No, if they aren't on the card or the stick, and recovery software can't recover them, they certainly aren't on the PC if you only used that to drag (or copy/paste) them between devices.
Consider them lost, and be more careful next time. And start thinking about a backup scheme, if necessary. Your wouldn't want to losse this 160 pics if something happened with the PC, would she?
I had a large amount of pictures (400 +) that I some how managed to erase while I was transferring movie files from it. I found some software that helps recover lost data on camera memory cards. I was able to recover about a 160 of them, but of course the others were "more important" to my wife. These files were blank and are corrupted. I guess my question is...I opened this memory card on my computer a few weeks ago and transferred a few of them to a USB memory stick. Even though I didn't transfer them to the computer, is there some way ythe the computer would have traces of these files. I have a Gateway PC GT5662 running Vista. Thanks in advance and Happy New Year.