Is there a way to just edit the html code around the forums?
For example
top half code
phpbbforums
bottomhalf code
This way I can just give monochrome colors to the forum that match the main sites design. and just design the "frame" of the forums. (not real html frames)
Yeh. You don't really need a demo. It does what you need and there's nothing to see on the user facing side. If you don't like it, it's easy to uninstall.