Problem w/ AttachTemplate in word document

[FancyPrairie]

I have 600 word documents that were done incorrectly (headers and footers have same image multiple times). To fix the problem I've created a template with a header and footer as they should be. Then I wrote code to attach the template to the existing documents. Problem is, AttachedTemplate command does seem to work (header and footer are not shown).

What am I doing wrong?

My code looks like this:

Function FixWordDocs()

    Dim oWord As Word.Application
    Set oWord = New Word.Application
    
    oWord.Documents.Open "test.doc"
    oWord.ActiveDocument.AttachedTemplate = "NewHeaderFooter.dot"
    oWord.Visible = True
    set oWord = Nothing

End Function