Files (like pictures) aren't stored in the registry. So that's surely not the place to go.
The longer ago they were deleted, the less likely you'll be able to get them back. Unless, of course, you deleted them to the recycle bin; then they are still there.
Google XP UNDELETE and see if any of the freeware or shareware programs found there can find something. I shouldn't count on it. That's why it makes sense to have a backup of things you don't want to lose. Don't you have one?
How do I do this please? Is there a software program for it or do I need to get into the registry myself? thanks
Windows XP on Acer "Aspire" netbook.