Office challenge: What's the easiest way to migrate your customized Word 2003 file to Word 2007 or 2010?

In this week's Office challenge, test your upgrading skills and share the quickest way to save your template customizations with other readers.

If you've spent a lot of time customizing your template in Word 2003, you don't want to start over just because you upgrade to Word 2007 or Word 2010! What's the easiest way you can think of to migrate your Word 2003 customizations to a newly upgraded version of Word?