MyBB Community Forums

I was busy creating a website recently .. it's finished now(it's still plain xhtml) But now i want to add the forum.. this aint difficould but i want to 'insert' it between the header/footer of my website.(so all the pages have to same header/footer but a diffrent main)

little example:
[Header]
Forum here!
[Footer]

I could use frames to fix this.. but i don't want to use frames.

In what file do I have to include them? and how..

Use the header and footer templates (get to them though the ACP - Admin Control Panel).

Unfortunately, there is no easy way to directly include PHP files.