First off, signup with madRooster.com and get
your account information. From your old site, backup all of your files
to your hard drive at home. Connect to your new account via FTP or
Online File Manager with madRooster.com, and upload all of your files.
You can go to your domain registrar (or your old host, depending on how
the domain was registered), and request (or make) the change to your
nameservers. (Your madRooster.com nameserver information was mailed to
you in the welcome E-mail).
Nameservers can take up to 5 days to propagate. The usual propagation time is 24-48 hours.