Choose, for example, English (USA). If there is no DHCP on the local network set up a static network (e.g., IP=188.8.131.52, NetMask=255.255.255.192, Gateway=184.108.40.206, DNS=220.127.116.11 18.104.22.168). Choose the defaults for all options unless you know better. There should only be one or two questions. You will eventually be asked to remove the CD and reboot.
Configure the time zone (e.g., Australia/ACT). Add Root and User accounts. Don't do any task selection for now. For the email set up choose local delivery. Note that to reconfigure, run the base-config program.
And that is it. The system is ready to use! The user account is quite spartan and there aren't many applications installed, so these are the next steps.