Word Template Integration With AD

Hopefully someone will have an idea of how to do what I'm trying to do. We
use custom templates for MS Word 2003. The templates contain user names so
when creating a letter, we can populate the info (address, etc)
automaticatically once a name is selected. The problem is that we have to
manually edit the Names.doc file everytime we have a new user or name change,
etc. Is there any way to get the info to be pulled directly from Active
Directory so everytime a change is made in AD, it is also made in the
template file?

Thanks in advance for any replies received.