Hello,

Not knowing what you have done, I'll offer a few tips that may or may not help you.

When you create an add-on domain, it creates a sub-domain with that name on the server, usually in the /safety-speaker folder. This folder is no longer part of the original FrontPage web site.

You now need to create a new FrontPage web site on the server by using the FrontPage icon in cPanel to install a second set of FrontPage extensions, this time in the sub-domain folder.

In FrontPage, the safety-speaker files should be in a separate FrontPage web.

Once you have done this you should be able to publish to http://safety-speaker.com.

If you are having issues with frontpage extensions, generally the only way to fix them is to reinstall the extensions, and as you mention you have contacted support, you should have been sent a series of steps, that must be followed exactly as shown to properly clear out the extensions and then reinstall.

If the steps outlined dont work, reply to the message that you were sent with your security information, and your ticket can be escalated to be further reviewed as the old extensions may need a manual removal.

If your frontpage extensions are constantly breaking, you may need to investigate what may be causing the breakage, with the followng being the most common reasons I have seen "breaks" frontpage extensions:

Using regular FTP to access the account.
Making manual edits to your .htaccess file.
Switching between php4/5 (if on a server that allows this).

As I mentioned, many people consider frontpage extensions to be "unstable", and this is something that affects all hosts.

From research I have done online, even Microsoft techs may consider them to be unstable (although noone from microsoft will admit this), to the point that they have replaced Frontpage wtih "Microsoft Expression Web" which is able to create standards compliant websites without using the FP extensions.

Frontpage 2003 came out in October of 2003, and was replaced November, 2006 by Expression Web Designer 2007.

I generally recommend, if possible, upgrade to Expression Web 2 , which was released April 2008, as using older frontpage software, may eventually lead to being non-compatible with the technology used for servers at some point in the future, and could result in eventual breakage of websites.  By upgrading and redoing sites in the newer software, you may get a longer "lifetime" for the code you are using for the site.

Consider asking support to "reset" your account back to the original server condition so you can get a fresh start.