Your list of available authors is synchronized with the list of users in your Password Manager, including any users to whom you've granted password or FTP access to your site. Because your FrontPage author list reflects all of the users in your hosting account, including those to whom you allow FTP access, be sure before you delete an author that you want to eliminate that author's access to every part of your site.
Remember that you can also simply remove an author's FrontPage publishing privileges by unassigning that author in subwebs to which he's been assigned. Unassigning an author prevents him from using FrontPage to publish to your site but allows you to grant the author password and FTP access, and to reassign him to a subweb later without having to re-create the author account. Learn how to change an author's publishing privileges.
To delete an author permanently from your account:
1. From the Create & Update tab of your Web Hosting Control Panel, click "FrontPage."

2. Click the "Manage Authors" link.

3. Locate the author whose account you want to delete and click the corresponding "Delete" link. This author will no longer have FrontPage, password, or FTP access to your site.

You can also use the Password Manager to manage details of an author account. In the Password Manager you can view and modify a user's access privileges (including FTP access), assign him a new password, and delete unwanted authors. Learn more.