Mm. Surely you can gleam the types of question they're going to ask from that paper? It's not a knowledge based test, as you can see, and most will have just done that one paper, as I don't think they are released just for the reason - that it's not going to be helpful on top of the one they've already provided. And if it did help, it would be better for the examiners not to release them, as it helps the examiners discriminate on fairer grounds (i.e. 'potential' rather than preparation).
Though, I have heard that some critical thinking papers are similar in style. So perhaps look at the the AS papers from all the different exam boards, till you find something that's helpful?! Sorry I can't be more help!