I tried all of the suggestions on this site to get it to work. None of them worked as indicated. I did finally get Limewire to run on my vista box. Here's how:

Delete temp files (Windows folder and Username folder)
Delete Limewire pref's from the Username folder
Uninstall all java from your system
Uninstall Limewire
Restart computer
Go to this site and download (OFFLINE version) of java
Archive: Download Java 2 Platform Standard Edition (J2SE) 5.0 Update 11
Install java
Locate your Limewire Pro installer
Start Limewire installation (do NOT RUN at the end)
Go back to Add/Remove Programs
Delete the version of java Limewire just installed
You should only have the version you JUST downloaded (5 update 11)
Confirm there is only ONE version of java on your system
Start Limewire

That's how I got mine to run.

user001

p.s. I posted this in several threads that apply to this issue, I'm NOT spamming!