removing parts of the Html templates until things start working OK, then adding bits back.  The most likely scenario is that your User Profiles, created in version of DNN when core-integrated Social Networking was a distant pipedream, have some incompatible data or settings.   The best way to handle this is to gradually wind back what is being displayed until it works, which should identify the problem area(s). Customising your new Social Network The steps above will give you basic Social Networking functionality.  This allows members to view the profiles of other members, add them as friends, post on their walls, and similar activities. How you do the rest is really up to you, bearing your site audience in mind.  You can further expand your site by adding Social Groups, Group pages, and more.   You don't have to stick with the default profile pages as I've laid out here -- the exercise is really to break down how the social pages appear in a standard DNN 6.2 install, hopefully to remove the mystery on how the pages are put together, and how to replicate that setup. @brett - it would depend on the css class you need. If you have a test install with the DarkKnight skin, you could trace the class by using IE Dev Tools, Firebug or Chrome Developer tools. All these will identify where a specific css class originates from. In terms of my example, it includes 'pBio' and 'pAddress' - but I actually can't find any reference