You need some small preparation :
Some FrontPage features require special FrontPage information called
metadata (metadata: Data that describes other data. For example, the
words in a document are data; the word count is an example of
metadata.). If the Remote Web Site command is unavailable, you may need
to add FrontPage metadata to your Web site. To learn more about
FrontPage metadata, see About FrontPage Web sites in the See Also list,
which is visible when you are connected to the Internet.
To add FrontPage metadata to your Web site
Close all open pages.
On the File menu, click Open Site.
In the Open Site dialog box, browse to and click the folder that
contains your Web site.
No folder or site name will appear in the Site name box.
Click Open. If you are alerted that FrontPage needs to add information
to your folder, click Yes.
Note If you have just created a new Web site by using FrontPage, you
must save and name the site before you can publish.