Right now I have two templates on my site. I use socialize for the logged-in user experience. Our homepage is used for guest who are thinking about joining and it utilizes an entirely different template, though I believe they both rely on the t-3 framework. I would like the people who navigate to the homepage of our site to be redirected to their groups list page if they are already logged in with an active session. If they are not logged in I would just like them to see the regular home page. This is similar to how facebook does it. If a person navigates to their site and they have an active session, they see their wall. If not, they are prompted to join. how can i accomplish this?