This is a cool page I found on putting Music on your PSP. It shows you how to edit your mp3 ID3 tags. You can add images and change the song and album name.. The secound link is a good site to search for album covers to use with the program. The last link is a good app to use for mac users to edit ID3 tags. If you have any problems just post it and I can help you out.
Tutorial:
http://www.extremetech.com/article2/...80878%2C00.asp
CD Covers:
http://www.slothradio.com/covers/
Mac Client:
http://www.versiontracker.com/dyn/moreinfo/macosx/9196