Hello,
I've done the 'open in IE & select 'edit with FP' and I didn't get any dialog box or request for password.
If you do not get a password prompt , the FP extensions are not working. A more complete cleanout and reinstall often helps.
This is the usual drill for a complete cleanout...
* In cPanel, click to uninstall the FrontPage extensions. When it finishes, click to cleanup old extensions.
* In cPanel File Manager, delete all files and folders INSIDE the public_html folder. Do not delete the public_html folder itself.
* In cPanel, reinstall the FrontPage extensions.
* In FrontPage, publish your new site to
http://yourdomain.com (substitute your domain name.)
Caution: if you choose to do a complete cleanout of the server, please be sure you have the source files for your web site on your computer so you can re-publish.
Tip: If you are using the extensions, don't do the things in cPanel that cause a re-write of the FrontPage .htaccess file. This would include applying hotlink protection.