SEO and internal linking plugin

Hello

Can anyone tell me if the WPMU plugins can do internal linking for SEO? I just found this plugin and I am not sure if WPMU already has plugins that can do the same thing http://www.warriorforum.com/warrior-special-offers-forum/489985-anyone-can-use-our-internal-linking-app-better-google-rankings-just-few-simple-clicks.html