Annette teaches at Norton Heath and at Patchetts and still competes very successfully. There is a nice recent picture of her on the Patchetts website under the trainers section www.patchetts.co.uk
Class tickets are for horse/rider combination. Check the schedule though as I thought at our local intro show non members of the BSJA can try any of the affiliated classes with a Free BSJA ticket, so you should not have to buy a ticket at an Intro show.
Well done to you, and yes it looks quite big for a BN, obviously they build up to height. Why don't you try an Intro day, they usually have open classes 70cm, 80cm, British Novice and 90cms and you could jump 80cm as a warm up to British Novice.
There is a group of us going, really looking forward to it. Thought price of ticket, although not cheap, fair, it is after all Carl, he will be worth every penny and does not do that many demos!