Hi carty23,
I wasn't a maths/science type at school, I worked hard and got reasonable grades at GCSE then did French, History, Geography and English at A Level. I went on to pass the ATPL theory exams a couple of years later, it was hard work but I had no real problems.
It's true that there is a maths and science element to the exams, but the reality is that many of them are an exercise in retaining large amounts of non-technical facts and information. There is of course an amount of technical theory which must be understood in some of the subjects, but pick a decent school and the course notes, brush-ups (assuming distance learning here) and a good measure of hard graft will see you through. I used Bristol and never looked back. It's probably easier if you've done some science at a higher level, but it's certainly do-able if you haven't, as long as you're willing to apply yourself and work hard at understanding concepts which you might never have met before.
I would say work hard at your GCSE's and A-Levels, as good qualifications will provide you with other job options, particularly important with the economy in the state it's in at the moment.