Once you’ve got all your Web site settings configured, it’s time to change the content of the site from the default pages to those you’ve created. Start by opening the wwwroot directory and deleting all existing files, since you’ll no longer need these. The most effective way to create your own Web pages is to use an HTML editor like FrontPage, and then save the files with an appropriate filename to the C:\Inetpub\wwwroot directory as applicable.
Just remember that your site homepage is usually called index.html, and that this filename must be added to the Documents list on the properties of the Web site. Be sure to add index.html files to all of your virtual directories as well, unless you have directory browsing enabled.