You will receive information on how to use your FTP client before your domain name propogates.

Example: your account user name is nzdemo and password is nzpwrd

Site address: 216.73.117.138 or the IP no given for a static IP address
Login: nzdemo
Password : nzpwrd

The initial romote directory is /public_html/

Please remember to change your Site address to your domain name when this propogates