can't seem to request a song

mod_mp3 was working fabulously for me when using the filesystem
or a playlist. Now I've switched to mysql and no matter which song
i request, the server returns the first song in the database.

Here's how I'm making the request:

mpg123
http://mp3.mydomain.com:8000/?op=play&song=6c6e1d883fe68048214f7e490bdc7cd4

Here's the relevant VirtualHost's config:

<VirtualHost _default_:8000>
ServerName mp3.mydomain.com
MP3Engine               On
MP3CastName             "the doppler fx"
MP3Genre                "various"
MP3DispatchAgent        mysql
MP3MySQLConnectInfo     "localhost" "blah" "blah"
MP3MySQLInfo            "music" "songs"
MP3MySQLTokenTable      "tokens"
#MP3                    /home/httpd/htdocs/mp3
#MP3Playlist            "/home/httpd/htdocs/mp3/playlist.m3u"
# MP3Random             On
MP3Log                  /var/log/apache/mp3_log
ErrorLog                /var/log/apache/mp3_log
Timeout                 2400
</VirtualHost>

I'm sure it's something stupid I've overlooked. Thanks in advance for
the pointer.

doppler