I think, apart for one other guy, we were the only people camping on Friday night last year.
My limited directions would be, from the entrance go straight into the main car park and then into the adjoining car park up the hill on the right. In front of you you will see a couple of detached building (one is the toilet block). Keep to the left of the buildings and we should be at the very bottom of that field. Unless someone gets there first.
If in doubt look for a bloke with a pink rinse drinking a Cinzano. That will be Big Kev.
Really; look for a DT or three, a TDR and hopefully a TS.
Food