First, you need to configure Operations Manager 2007 to interoperate with VMM. That includes importing the System Center Virtual Machine Manager 2008 Management Pack, installing a VMM Administrator Console on the Operations Manager root management server, installing an Operations Console for Operations Manager on the VMM server, and several other steps. To simplify this, the Configure Operations Manager option on the VMM Setup media automates most of this process.
After completing the Operations Manager configuration, you will need to configure VMM for PRO. For an overview of the entire PRO configuration, see Enabling PRO in VMM.