CertReq - Obtaining the private key - Urgent Question Thx

Hello,
I need to request a website certificate to enable ssl within my DMZ Server.
We are currently using a Windows Server 2008 PKI Enterprise Issuing CA within the trusted network.

Unfortunately I can't use WebSRV as the firewall is preventing port 80 communications.

I would like to use CertReq utility to create the request file on the DMZ server, copy the request file to an Intranet server then submit the request to the PKI server.

Everything is working however when I import the CER file, the private key is missing therefore the handshake authentication is failing - as I suspected since CER doesn't contain the private key.

Is it possible to request a certificate using CertReq.exe while having the private key contained within (PFK format)?

I can't use IIS Mgr - Request an offline certificate because it messes up the subject name of the certificate.

I'm following this kb article: http://support.microsoft.com/kb/931351

Thanks,
-Matt