SiteBuilder works offline — just like a word processing program or other desktop software — on your PC. While you're using SiteBuilder to build your pages, you're creating and editing files on your own computer. When your site is ready for others to see, you'll want to publish your site so that people can find your pages on the Web.
In putting your site online, you'll copy your files from the web site folder on your computer to your Yahoo! Web Hosting or Merchant Solutions account. This transfer is called publishing. When you publish your web pages, you make them available on the World Wide Web. (Please note that you'll need a Web Hosting or Merchant Solutions account to publish your site.)