Thanks guys,
Found a few people on ebay selling the oxford aviation maths and physics CDs, might give them a go as its been 10 years since my GCSEs!
I should also mention that I did the MOD flying test at Cranwell around 8 years ago (was going to join the FAA), I passed pilot (well), observer (just) and failed ATC. During my de-brief I was told the FAA required passes in all but looking at my score i would be a good civil candidate?
I wonder how close the CTC for example test is compared to the FAA one i took all those years ago?