1. I would suggest using your Add/Remove Control panel to remove Java & then re-install using the "Offline" java installer;
Java 1.5 (take the JRE)
2. Get the "Offline" LW installer from here:
http://www.limewire.com/english/content/download.shtml
* Use this utility before re-installing LW:
http://www.ccleaner.com/
Did you attempt to use the Add/Remove Programs Control panel to remove LW? IF yes, that's the incorrect way to uninstall LW.