I alread have an A in Computer Studies, A in Business Studies, B in Biology.
They were done in 2005.
Now i'm repeating Biology but under a new exam board, which means none of my marks from my last Biology grade count for anything now

The content between exam boards does seem to differ quite a bit too:S
Anyway and I am doing Chemistry A level (as well as my Biology one) from scratch in one year, so the AS' will be done in January and the A2s in June.
In your A levels Yertle, are the AOs a exam level, like what we mean by AS and A2s?