Welcome to WoWInterface, Gum.
As mentioned, the LUI website (linked on the download page) is the best place to ask questions about that UI - unless you get lucky and someone comes along here who knows the ins and outs of it.
Also, for future reference, there isn't really a need to bump your posts on this site. We don't move nearly as fast as the official forums - especially not in the middle of the night (US).