Active Directory Root Certificate

Hello,

As we have a new Active Directory Root Certificate:

What is (are) the case(s) where I need the Active Directory Root Certificate within SCOM 2007?

Does a momcertimport on MS and RMS will be sufficient?

How to verify if I am using the Active Directory Root Certificate already?

Thanks,
Dom

System Center Operations Manager 2007 / System Center Configuration Manager 2007 R2 / Forefront Client Security / Forefront Identity Manager