Clicking on the Site Summary button shows you valuable information about your account. Inside you will find:

Site Name: This is the name of your web
site, and is the same as your registered domain name.
Site Administrator Username: You will
need a user name to access or "connect" to our computers. Just like
your site name, your user name will be unique from everyone else on the server.
Disk Used: This is how much disk space
you have used.
Server Names: Each web site is set-up
on a specific server. This section tells you the name of the server your site
is on. Web: tells you the name used to reach your site through a browser window.
Secure: tells you what server name to use when calling the secure server (a
secure form, for example)