You forgot the give me your Java version. May I suggest you uninstall Java & reinstall it. Use the Add/Remove Prog control panel to remove java. Then download & install specifically the "Offline" version of Java here: Java 1.5 (take the JRE)

But I should warn you about this .. it may not affect you now but perhaps later: 1. ISP's known to BLOCK or Filter p2p or specifically Limewire, & also this one dare I say it, 2. A Fix for those whose ISP's block Limewire pages 1 - 3 which have links to alternative instructions.