About that, a friend of mine recommended a website with a lot of free material including math. I told him I was planning going back to school and he said that if I wanted to brush up on math that I'd visit this site: http://www.khanacademy.org/
It's a step-wise educational program and I think you can start anywhere you like.
I was told the inventor of the organization had ideals that education should be free and started out with some youtube vids.
Thought it might be useful.