I don't find the specific-path that you stated in above...but did find it in a couple of different places. My two (2) CER paths are below -
HKEY_LOCAL_MACHINE\SOFTWARE\SAP BusinessObjects\Suite XI 4.0\CER
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\SAP BusinessObjects\Suite XI 4.0\CER
RequestPortLower = 6433
RequestPortUpper = 6450
I compared this to a different server where the Business View Manager is working correctly, and the setting are the same.