Hi,
I don't know how far you are into the course or how you are getting on, but thoroughy learning the material is essential to the overall success of the course.
However I believe there are CD-ROMS (PPSC, I think) currently available on the ebay web site (
www.ebay.co.uk) covering feedback questions and course work.
Perhaps they would be of some help to you.
Good Luck,
AC