You could modify the template that's used for that page and all new pages:
In a normal install of FrontPage 2000 and 2002, this file is in C:\Program
Files\Microsoft Office\Templates\1033\Pages\normal.tem\
In a normal install of FrontPage 2003, this file is in C:\Program
Files\Microsoft Office\Templates\1033\PAGES11\normal.tem\
You can open this file in FrontPage and edit it like you would any other web
page. Navigate to the directory where the file is located, open the file and
choose File | Properties. You can add things that you want to be common to
all the new web pages you create from this point on in all your webs, like
Meta tags and DOCTYPE.
http://www.spiderwebwoman.com/tutorials/doctypesolution.asp
Please note however, that this template is used for all new pages, so it
will be used for all your sites.
--
~ Kathleen Anderson
Microsoft FrontPage MVP
Spider Web Woman Designs
http://www.spiderwebwoman.com/resources/