I don't know if this will work for any of you, but I finally got Limewire installed...

I deleted everything I could find of Limewire on my system. I downloaded the Java runtime and installed it by itself instead of through the Limewire installer, because that's what messed me up the first time. then I downloaded a fresh copy of the newest Limewire and finally it installed fine. Although to be able to delete my old one i had to do ctrl-alt-dlt to see that the installed hadn't closed yet...

don't know if this will help, i tried though...