if you book your test before the end of September you will do the old test,after that date....your fooked.
there is still plenty of time to do all your training etc....
i have just booked my CBT for next Sunday and my lessons the following Saturday,test for the big bike is onn the Monday....going to be a bit of a rush.
if i fail it, i will have time to book another one,so it won't be too bad.