GPO Set Office Word Workgroup Template Location

I am trying to set the Word workgroup Template location by GPO.

we are in a server 2003 domain with XP and Windows 7 Clients.

a mixture of office versions 2003/2007/2010.

i have read that i can use the appropriate office version ADM and ADMX to do this.

i tried creating a new GPO object and adding the ADM (both 2007 and 2010) . I get the ADM office setting but I can't find the "Shared Paths" setting which configures the templates file locations.

I have also tried the ADMX but with the same outcome.

Where do I find the "Shared Paths" setting and what have I been wrong.

thanks