When you order a VPS with DirectAdmin it will be preinstalled, but one of the Tilaa support staff members has to activate your license manually. We will do this within an hour on workdays between 9:00 and 20:00.
Please make sure you respond to the mail we've sent you to supply us with a hostname for the server. No mail received? Please check your spam box. You will receive a reply with login information as soon as the license has been activated.