[Handle "New" document command click in Word2007]

Hello

Can anyone help me with handle events when user click "New".

I need to trap this action and if some condition = true show Word 2007 "New document" dialog and if not do my action.

I try to create macro with name "FileNew" and it executed after user click "New" in Word, but then standard "New Document" dialog not shows up.

I try to call Dialog(wdDialogFileNew).show but it show old dialog that was used in Word 2003.

So I need find way to show NEW standard "New Document" dialog or handle click to command menu - "New"

Thanks