For XP I found the easiest way was to go into explorer and choose search

Click all files and folders
put limewire in the top box
click search.
EVERYTHING that comes up - Delete!

Close down your firewall in control panel.

Download and install limewire.

It worked for me after several attempts and frustration trawling through individual folders.

Incidently I have a Vista machine and LW worked fine. Maybe it is a XP SP3 issue.