Yesterday an updated MP for monitoring SCCM SP2 has been released. This MP works with OpsMgr R2 or OpsMgr SP1 when hotfix KB971541 has been installed. This enables this MP to work with both the 32-bit and the 64-bit Operations Manager 2007 agent.
This MP can be used to monitor Configuration Manager 2007 SP1, but performance counters will not work if the Configuration Manager 2007 site is installed in a 64-bit environment. In a 32-bit environment, performance will be the same as with the Configuration Manager 2007 Management Pack.
MP and the guide can be downloaded here.