I can help you with two problem.
Picture 2
->wgoheader_background
This works in my forum. If I change from red to black (a test only), it works great!
Picture 3
->postbithead_background
Picture 4.
It was a long time a designed my forum. So I don?t remeber, sorry!
My wish is that you can open a CSS-file in a program there you can fix the php-code, exampel is the program "Intype". But now you must to change all the CSS in the Stylevar, and I dont like it. I like to change the CSS like I do on my hompage in the program "Intype". I hope vbulletin can do it, so the member can change the CSS in forum and if they want they can change the CSS in a program. Two choise like a simple!