Theres quite a few posts on the ring giving advice is you use the search function.
the general things tho
1/ if the stewards think your exhaust is too loud don't expect to get on the track that day unless u get a baffle or something
2/all the corners that bikes regularly crash on have signs before them with a pic of a crashing bike on it so just take it easy on that.
3/ the carrosel (the wall type thing you go round) is easier to actually hit it and go round properly than try and ride the road around it
4/you can get prossecuted for driving like a dick (not that i think anyone here would do that)
5/keep an eye in your mirrors for cars, indicate and move right to let them past
6/dont get drawn in to going at more than your own pace, there are very few run offs and a few streight dives into a concrete wall
7/only do one lap at a time and take 10 mins to chat about it with your mates giving you and your bike a bit of time to cool off before atacking again
8/There are markers(white paint blobs) on most of the corners put there by the race schools that tell you where to turn in and where the apex is, keep an eye out for them, they are placed for cars but work for bikes.
Finally the same as any riding, dont bottle it mid corner
p.s the lass's name is sabine, you prob won't see her there tho cause she stopped going much after she was on top gear, got a bit more famous and a bit pissed off with everyone wanting to meet her, But if you really must meet her you can book her to take you round in the ring taxi
and john if i am very lucky i will see you guys at the ring so u wont be the only skirt wearer