Elwood,

Dont be afraid of the ` apt ` tool.... its really easy

to perform the operation that SakiZ recomended simply issue the follow commands in a terminal window AS ROOT:
Code:
apt-get update 
apt-get --purge remove xmms 
apt-get -t stable install xmms
All done!
Whole operation will probably take less than 2min


Take Care,
-Justin
One Mynds Eye