i think its easier just to use a ID tagging program and embed the art in the files themselves.
Thanks. I have been looking for the answer to this one for ages. I cannot make a .nomedia file (windows does not allow it) so I copied and pasted the one in Beuatiful Widgets folder
Sounds great until you read about this bug:
Issue 3692 - android - MediaScanner deletes jpg and gif files - Project Hosting on Google Code