well when you go to the add server button while on minecraft multiplayer pick a name for the server it can be anything you want then when you put in the address it is smp ( 1,2,3,4,5,6,7,8,9). <-- pick any one of those numbers and only one, so the server address will be smp#.empire.us the # is for what number you use though when adding the server address don't leave the #.
Put SMP1.empire.us in the box. We have SMP 1-9, and a "Utopia" for supporters. Welcome to the Empire!