1. When you enter your domain name your browser first looks for a file called index.html, if it doesn't find that it looks for index.htm
2. When you register for hosting with Bravenet an index.html page is created with the "under construction" message as a place holder until you upload your site.
3. If you call your home page index.htm then it will be "hidden behind" the index.html unless you delete it.
