For anyone that cares, I've made the latest AquaLime so that users can use the options pane to choose skins. They take effect on restart unfortunately.
I think I might be about the third person/group to independantly accomplish this hehe but there it is. Bah.

update: Just fixed it so deleting the theme the user was using won't crash the prog. It just tries to use the default one (aqua) instead. If THAT isn't there either, it just uses the regular LimeWire look. That version isn't out, but will be. It's quite solid