Level 2 - In the CPAG exam what version of Sage is used? Sage Instant/50 or Sage One?

I have an exam on monday and i was feeling ok until it dawned on me that it might not be the same Sage system in the exam as i am use to!! So i am studying with BPP (online distance) and was provided with a Sage Instant CD. I have worked through my workbooks using the Sage instant methods, however now i am having a freak out that in the exam i am going to be presented with Sage One! Do i need to swat up on Sage one or will i have the choice of which version to use in the exam?
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