The entire board here is the help file
Seriously, if it wasn't for this board, I would be where I am at now and working on a total graphical overhaul as opposed to minor xml modifications.
I'm still learning too, but if you browse through here, plus sit and play with some of the settings, you'll begin to understand how a lot of it works.
And don't be afrqaid to ask a more specific question. You gotta find out somehow
TO answer your label questions, use notepad or Pete's xml editor, much easier for the beginnner (I'm still doing it that way). It takesa little longer, but hey, you keep learning.
Make sure that the labels that aren't showing up are listed at the end of the xml file with all the Pieces tags. If you don't list it there, it won't show up.