As mentioned on the MOM team blog there was a problem with the IIS 7 Managemenent pack. After importing the Windows Server 2008 Internet Information Services...
Last minute change!
Yesterday, Microsoft released the OpsMgr R2 RC on their connect website. It’s version 6.1.7043.0 and is 1.277,26 MB in size !
Title: Using System Center Operations Manager to monitor your SharePoint environment.