I injured my foot in a basketball game, on the inside of it, in the middle, near the bottom. It hurts to walk down hills, cut, and plant it when I kick. There was bruis and swelling whe it happened, this was almost a month ago, and it still bothers me. I know there are a lot of tiny little bones in my foot... I couldn't have broken or fractured one, right?

It's very possible. You could have torn something too. Go to your family doctor and have them do an x-ray. Hope you feel better soon!