Well, for the category names, you have to open the category file...
For example, opening eq2ui_journals.xml (not the lack of a second _ and stuff after it -- that means its the category's root file).
In there are include statements for every file in that category -- if its not included in there, it won't be used by the UI.
Also notice at the top this line:
Code:
<Page ismodule="true" Name="Journals" PackSize="1,1" ScrollExtent="1024,768" Size="1024,768" Visible="false">
Note the Name="Journals"
That gives you the capitalization you need.
If you look at eq2ui_mainhud.xml you'll see
Name="MainHUD"
That gives the proper capitalization for MainHUD =)