All you need to access your Mypages website space are your Active Directory username and password. You can visit the Active Directory page for more information. There is no need to apply for the account.
Your Mypages website will be located at:
Where "username" will be your Active Directory username.
VSU Web Services provides tutorials on how to FTP into your Mypages website using several different programs.
You can find those tutorials here: Mypages FTP Tutorials
There are many resources and guides on how to create and edit your websites. You can start with the Step by Step Guide at VSU Web Services.
Eventually, the other servers (chiron/teach, coefaculty, www) will not be used for faculty, staff, and student websites. It is recommended that all new sites be made on Mypages, and that older pages be moved to Mypages.
The Expression Web 3 tutorial for connecting to Mypages includes an extra step on how to move your old website's content to Mypages.
You can find that tutorial here: Expression Web 3 running on Windows XP