I need to put a folder on the desktop to open a directory in /mnt/shared (FAT32) and this is how I did it:
1) I wen to the desktop and right-click the menu (choose "Create Launcher")
2) Name: Shared
Command (changes to URL): /mnt/shared
3) Hit the "Ok" bottom and Viola!
For those interested in te shell view:
[josue@trish josue]$ more Desktop/Shared.desktop
I hope this might help you... do the same, but it the Command box, browse for the xmms folder (/usr/lib or /usr/local/xmms) and should work!!!