Theres a bit of info in the previous pages about the stages, plod through it and you will probably find some useful stuff, there is also some information on the 'CTC or Oxford' thread, but to be honest its kinda turning into a warzone over there, chances of salvaging anything out of that thread?? slim to none...enjoy
good luck with applying
(ps, for anyone interested, there are 2 german guys on the course, one in the UK and one in NZ. Both thoroughly nice guys)