I've been using Jeff's rioserve for few months and have sent him some updates. You can try them out now from my web site, as Jeff hasn't updated his page in quite some time.

http://graflex.org/klotz/rio/

1. Updated installation instructions.
2. The web interface now lets you list by title, artist, album, or genre, not just by title.
3. When you click on a link you get an 'edit' page. You can edit any of the fields and it updates the database.
3a. Editing also updates the MP3 file itself, if you have write permission and mp3info executable installed (I used mp3info-0.8.4-2)
4. Configuration is now in config.pl, not spread into multiple files.
5. Instructions now include specific step-by-step directions for Apache, NFS, DHCP, and SSDP configuration.