Paula,
You have a ticket for what's probably the best campsite.
The track runs next to it, so depending where you pitch your tent, you can be 20m or 200m from it.
Security's not bad, we have never had a problem. It's mainly men, some of them are lovely, on the campsites, but there are quite a few women around, as well as families, couples etc. There are a few men who would like to be women.
It is very good natured, everyone is up for a laugh, and the party atmosphere lasts for about 4 days. There are plenty bars/restaurants/snack bars etc around the circuit.
As the ad says, just do it, you won't regret a minute.
Any more questions, just ask!
H