Yes, the "new and improved" BRCA website is pretty hopeless.
This list should be a bit more up to date -
http://centralbooking.org/cbs/index....ent&Itemid=109
Bear in mind that most clubs will not insist on shells from the BRCA list, although you might get a few raised eyebrows if you turn up with a GT shell on the car and start winning the A-final.
As far as choosing a shell, Protoform's LTC-R and Mazdaspeed 6 are the most common choices, some say the Mazda is a little safer to drive although I can't say I've noticed much difference.