Just curious: I use FrontPage 2000 (less and less), but have always left the '<meta name="GENERATOR" content="Microsoft FrontPage 4.0">' tag in the page. Do you do the same?
I just reviewed a site that it was totally obivious that the person used FrontPage, but for some reason deleted those tags. I don't understand why. Most users never look at the source code. Web developers that do look at the code would probably know it was FP anyway by other elements within the code. So what are they trying to hide?