You can manage your authors from the Manage Site or Manage Authors areas of the Web Hosting Control Panel's FrontPage console after you have activated FrontPage publishing for your site. To open the FrontPage console, visit the Create & Update tab of your Web Hosting Control Panel and click the "FrontPage" link.

Here you can assign and unassign FrontPage publishing privileges for an author in your root web or subwebs. If you'd like to review and manage all authors granted access to a particular subweb, click the "Manage Site" link.

To modify publishing privileges by author, begin in the Manage Authors area. Learn more.
You can use the FrontPage console to add an author anytime. When you activate FrontPage, you'll assign default FrontPage publishing privileges to an existing author or new author. After you activate FrontPage, you can add an author to your account anytime from the FrontPage console's Manage Authors area. From the same console you can also delete unwanted authors.
Because your list of available authors is synchronized with the list of users in your Password Manager, you can also add an author by adding to your master list of user accounts in the Password Manager, then use the FrontPage console to assign publishing privileges to that user anytime. Learn more.