If you store the macros & useforms in the document template, they'll be available on whatever system the template is available, but not otherwise (because they don't get added to the document). The only reasons the code would remain in the document are:
1. You're using a document as a template, instead of using a template; or
2. The code specifically written to add itself to the document (which isn't something you're likely to have achieved by accident).

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]