Thanks for the responses all - I am indeed following a modular route although as has already been stated I have been informed that P1/S will be logged for the skills tests. I have also been told that initially when under line training, these hours will also be logged as P1/S although I don't know how true this is.
The reason for changing my logbook is that my PPL one is not only unsuitable for the further training but also has taken a bit of a battering during it's lifetime.
Once again thanks for the input!