You have to purchase a SSL certificate and have it applied to your domain,
then have the FP extensions applied to port 443 as well. Then to access your
pages via SSL, you must use a absolute URL like:
Thomas A. Rowe (Microsoft MVP - FrontPage)
FrontPage Resources, Forums, WebCircle,
MS KB Quick Links, etc.
To assist you in getting the best answers for FrontPage support see: