1.
GuiTabCtrl - I've written
a tutorial on how to use those (at least the way I do).
2.
GuiBitmapCtrl.
3. There is nothing there?
4.
GuiTreeViewCtrl.
5.
GuiMLTextCtrl contained within a
GuiScrollCtrl.
Now, I'm not the coder of that script so I could be wrong on a couple things, but that is what it looks like to me.