CMS Made Simple Forums

Has anyone successfully setup CMSMS to auto create users and create homepages like http://domain.com/username and let the user manage only that. I can grab a users firstname from my windows server and pass to php and then with some magic code I want a user "space" created for them if it does not already exist.

CMS Is not a portal system.... perhaps joomla or drupal would be better at it. There are other CMS' out there optimized for building portals.