Integrate PunBB forum into WordPress

I installed PunBB and integrate it into WordPress (style) to make it looks like part of the WordPress. Take a look: https://www.Liewcf.com/forum/

I have wrote a small instruction about how to do it at https://www.liewcf.com/wp/archives/2005/04/integrate-punbb-forum-into-wordpress/

Hopefully it is helpful to some of you. ??