anyone know what to do? (Java problem)

[likewoah]

I use Windows XP and downloaded limewire basic and it installed smoothly.
but when i try to launch limewire a popup saying "Limewire needs the Java Runtime Environment 5.0 or above. Click OK to go to java.com: Hot Games, Cool Apps, where you can install Java". I've gone there and installed it [again] but it still didn't work. I've uninstalled both limewire and java many times and restarted my computer but nothing seems to work.

Limewire used to work when I first got it but it might have been a different version, but I don't know where I can find older versions [for Windows XP]

Any ideas for both of them?

thanks in advance