Hi,
If you need to request a Web Server certificate, you can select the buildin Web Server certificate template on the web page and input the appropriate information. You don’t need to create a customize certificate template.
The following article may help you request a certificate for OCS:
Unified Communications Certificate Partners for Exchange 2007 and for Communications Server 2007
http://support.microsoft.com/kb/929395
If you need further assistance, I suggest that you post to the OCS forum:
OCS 2007 Deployment Overview
http://social.technet.microsoft.com/Forums/en-US/ucccommunityocsdeployment/threads
Thanks.
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