OK, here is the screenie I promised:
http://www.massassi.net/ec/images/14647.jpg)
Altering the actual .menu file was actually quite easy. It was just a matter of figuring out what command did what, and then taking out the things I didn't want, such as the centre video. Figuring out the colors took a little longer, but I've worked out how they work now, too.
I know you said that you wanted to try and replace the centre video, and for that I think you might need another video file, or something along those lines :)