Both Soldier Boy. You can either go round to the Festial Office first, or go over to the campsite - considering the lack of car parking spaces, you're better with the 2nd option really. And stewards will be selling campsite permits there - Tony and Dave on the Thursday / Friday.
If you arrive on the Thursday, head round to the Wagon for the Meet and Greet Session which Geoff Miller will be running from around 9p.m.. Nice to see old friends and faces.

Ali x