The process involves creating v2 templates (Windows Server 2003 enterprise) of the provisioning certificate and Web Server certificate. The standard edition cannot issue such template. You will need to add (or migrate) your CA using the Server Enterprise edition.
Thanks for the reply, but I've been doing additional research on this and multiple sources are stating that Windows Server 2008 R2 Standard Edition can also issue version 2 certificates. Can you confirm this? It will be much easier to upgrade a server to R2 than to add to or migrate my CA server to Server Enterprise Edition.
Windows Server 2008 R2 is able to issue version 2 certificate templates. When using your own internal CA to supply the provisioning certificate there are a couple of things to remember. The first is to make sure you create a Windows 2003 server supported certificate template. The second is you will need to add the root certificate hash into the Intel AMT firmware of each vPro computer.