Wordpress Integration

Ok so im trying to integrate wordpress with PunBB i want PunBB to appear under the header of wordpress like a wordpress page i tried following this guide

http://www.almosteffortless.com/2005/09 … and-punbb/

but got no luck from it whatsoever

i have wordpress installed in my root directory
http://peices.zzl.org/
and i have the k2 theme

i have PunBB installed in a different directory
http://peices.zzl.org/Forum
and im using the original themes (Oxygen)

Please help me