where are the citrix cdmx templates for 7.6?

I am not exactly sure which admx you are looking for, here you can get almost all admx links to download the templates http://larslohmann.blogspot.sg/2013/02/admx-files-available.html

I installed the Citrix Group Policy Management msi and I SEE my citrix policies, but one of my co-workers looked and said, hey, there aren't any ADMX files in the central store, so I posted the question.

From what I can tell, when I install the Citris Group policy Management msi on my mgt PC, I have all of the policies I need.  I DO see the two or three on the list you posted, but there are of course more Citrix policies that that.

Am I missing something?

You mean sync admx files to central store if so then, try this  
http://xenappblog.com/2010/create-a-central-store-for-group-policy-administrative-templates/
Hope it should work.

HOW to create a central store I understand.  We already use that model.  What I was looking for was the ADMX files for XD7.6 to copy over into my store.

I was told they were on the ISO, but I only see three on there and there are MANY more policies than three.  I expected to find a whole stack of ADMX files to copy over to support XD 7.6