To log into the SiteBuilder wizard for the first time and start creating your web site, you need no user login or password. As SiteBuilder has a web-based interface, you work with the application in a window of your browser.
If you have access to the SiteBuilder service, the administrator should give you an entry point to SiteBuilder. For example, the link can be http://sitebuilder.hosting_provider_domain.com/sitelogin.php
(this is only an example, real URLs can differ). Enter this URL into the address bar of your browser. The SiteBuilder wizard opens on the first Overview page. You can also access the SiteBuilder application from the web site of your hosting provider.
Note: If you bought the SiteBuilder service as a part of Plesk hosting service, you can log in to the SiteBuilder application right from the Plesk control panel by clicking the SiteBuilder button in the Domains section of the client interface.