Microsoft announced the release of VMMCA 2008 R2 for analysing the configuration of Virtual Machine Manager 2008 R2. You can do this before your installation of any of the server components or afterwards to troubleshoot. This will save you endless hours of troubleshooting and chatting with PSS. You can download it now but make sure you install the x64 edition of the MBCA (Microsoft Baseline Configuration Analyzer) first. Check out the original announcement for more details and scenarios.