I just noticed that course 6451B Planning, Deploying, and Managing Microsoft System Center Configuration Manager 2007 R2 is now available in beta. The original A version of the course was good, and based on the RTM version of SCCM. The B version has been updated to include the R2 features of Configuration Manager, as well as features like Native Mode and Internet Client Support, which was not included in the original. I’d definitely recommend waiting until the B version becomes available if you are planning on taking a Configuration Manager course, scheduled to release in early September.