xmms's strange behaviour

i'm writing you about mod_mp3. i've a problem.
xmms when i put http://myvirtualhost:8000 as url just get the title and skip to the next song.
any idea?
i know you write in the faq: 
XMMS is just sitting here doing nothing.
Look at the example, you probably don't have your virtualhost defined correctly.

but i think mod_mp3 is quite well configured 'cause:
1. xmms isn't sitting down but get the title and skip;
2. if i try with mozilla http://myvirtualhost:8000/?op=rss i've the list of the songs;
3. if i get with mozilla http://myvirtualhost:8000 or http://myvirtualhost:8000/?op=play&song=key, mozilla propose me to open the song with mpg123 or to download it (a .mpga).

i don't know well shoutcast(the protocol and the way in which work), but i often i listen to a radio streamed by shoutcast, so i think that isn't a problem of xmms.

hoping to read you soon,

(i apologize with brian for writing him personally)

-- 
Computer games don't affect kids; I mean if Pac-Man affected us as kids, we'd all be running around in darkened rooms, munching magic pills and listening to repetitive electronic music.
Kristian Wilson, Nintendo Inc, 1989
./yaroze