Know its not going to help you with this years subjects but I just thought of something and cant believe I never thought of it before.
Register on Osprey for all your next years modules and then you have access to all this years tuts and past papers and stuff. Which you can then use next year.
So that when it comes round to exams next year, you will get the normal "past paper" from Unisa, as well as this current years "past paper" so u get 2 for the price of one.
Pity I only thought of this in my final year
In fact you can build up all your future modules this way and get a nice little stash of tuts.
Cheers and good luck.