Basic calculus -,-

Anyone know of some websites that can teach calculus to complete utter fuck heads at math? I'm creating a plugin for 3Ds Max to create my own 3D model format and it turns out that I need to know some basic calc. Physics later for model collision as well :| So I'm pretty much fucked when it comes to math, but it can't be that hard, I mean, I'm not a retard. Should take me two months at most to get the hang of it if I work on it as much as I plan to.

You will be looking at trig (manipulating right angles), not calc.

Sin, Cos, Tan.
Basically you will break down an angle into components.
In FPS games, you will usually only have the angle you are facing and have to break the angle down into components.

....../|
..../..|
../....|
x____|

You are at X, and you have the angle, also known as the hypotenuse (/) but not the y (|) or the x (_) component. So you take the
y = sin(angle)*movedistance or hypotenuse in a top-down RPG.
x = cos(angle)*movedistance or hypotenuse in a top-down RPG.

I wrote a little demonstration tool a long time ago when I was learning this stuff, it makes a circle stay 100 pixels in hypotenuse length away from the center circle based on the angle relation of the center circle to the mouse. I can send it to you if you need to.