Operations Manager 2007 Backwards Compatibility MP for MOM 2005 has been updated to 6.0.5000.12http://blogs.technet.com/cliveeastwood/archive/2007/07/20/operations-manager-2007-backwards-compatibility-mp-for-mom-2005-has-been-updated-to-6-0-5000-12.aspxThe OpsMgr 2007 MOM 2005 Backward Compatibility MP has been updated twice now since its initial release and is available via http://www.microsoft.com/downloads/details.aspx?FamilyID=655cdd06-861e-4342-99b2-8a81e09f6546&DisplayLang=en The MSI includesen-USCommunityServer 2.1 SP1 (Build: 61025.2)