Installing Team Foundation Server installs several Web services that support Team Build. These services control build machines hosting Team Build and managing builds. However, Team Foundation Server setup does not install Team Build itself. This is by design. While you may choose to install Team Build on the same computer as Team Foundation Server for evaluation, we anticipate that a more common scenrario is to install Team Build on one or more dedicated build machines.
I’m updating the Installation Guide to include information about installing Team Build, but the simple direction is to simply run \bb\setup.exe on the Team Foundation Server installation disc. When prompted for a service account, you must use the same account used for the Team Foundation Server services account.
Edit - must use TFS service account for Team Build service account in Beta 2.