jediboy was right in the above post that you are going to find it very difficult to find a job in games programming without a very strong mathematical background. As an ex games programmer myself, I would probably take that statement one step further, and say that it would be nigh on impossible to get a job as a games programmer without a very strong mathematical background.
If your looking for a maths course, you could try the open university. http://www.open.ac.uk/ . They do a certificate in maths which would be a good start. After that you can then go on and take further studies within the area. The courses you’d most likely be looking at would be MU120, MST121 and MS221. You only need to pass two out of the three courses to obtain your certificate. The courses themselves are a little expensive, but the quality of the material that they send you out is first rate, and they have class tutorials. The last I remember, they use to have classes in a school out near Blackrock (provided your from Dublin that is!!). They also have a query centre based in Dublin which you can ring and get information about courses etc. Contact details can be found on the OU website.