Starting with the June CTP, you'll need to install Team Explorer to gain Team Foundation functionality. After installing Visual Studio 2005 Team Suite (or any of the role-based editions in later releases) you won't have access to Team Foundation until you do this additional install. It's no longer included in the Visual Studio installation process. You can find the setup for Team Explorer on the Team Foundation Server installation media/iso file. The autorun screen should have a link for it, too.