Thanks -- I'm making progress - but small steps

I was trying to add the full path of the document. In another post it suggested that I add the following code to the normal template:

Sub AutoOpen()
'Displays the Document Path in the Title Bar
ActiveWindow.Caption = ActiveDocument.FullName
End Sub

I open the normal.dotm (don't know why it is .dotm and not .dot) to a blank document and saved it. - exited word. When I restart word the normal.dotm is presented which has the the added code.

I was assuming that the code is vbscript and I would have to declare something in normal.dotm that it is code.

Am I missing the obvious?

Also where is this file stored?