If you purchased the PageLines 2.0 Developer Edition, you have access to PageLines Integrations. This allows you to use non-WordPress software on your website such as Vanilla forums & MediaWiki, and complety integrate it with your PageLines theme.
Vanilla is a light weight Internet forum package. It is written in PHP and runs smoothly along with your WordPress Site. With PageLines Integrations, it's easier than ever to match your Vanilla forum's appearance with your PageLines 2.0 theme. For more information on Vanilla, go to the Vanilla forums website