CMS Made Simple Forums

Does anybody know, how Mediawiki can be included with CMSMS?
Iam looking for a solution exactly like impemented in this page:
A CMSMS site but only one part (Dokumenatation) as WIKI.

Hi clemente,

The wiki part of the CMSMS site is purely MediaWiki. The theme has been altered to make it look like the rest of the site. The same with the forum, it's SimpleMachines Forum, but with the templates adapted to look like the rest of the site.

So you'd need to learn how MediaWiki works and edit a theme to your content.