Registration

[Hotker]

Hey there, I have recently been looking for a car and have found a few in the paper, a few of them say unlicenced and some say unregistered, I was just wondering if someone could tell me if there was a difference and if there is then what would i do about goin to get a car registered. cause i know that when a car is unlicenced you have to take it over the pits. But is there a difference and if so. what do i do about it!!