My scenario is this: I am currently testing out a new Team Foundation Server 2010 installation; which we will be moving to shortly.
Upgrading builds to work with TFS 2010 and the new MSBuild seems like a lot of work (it does not work out-of-the-box, at least). So what I would like to do, is to repurpose our old TFS Server to be a build server for TFS 2010. It already has build services installed.
I cannot figure out how to add an existing TFS 2008 Build Server to my new TFS 2010 installation, so I can use the old server to run old builds. Is this possible ? How can I do it ?