Using Potentiometers

[arpus maximus]

I need to a use a potentiometer in my full-size RC car project, but I am at a loss as to how to hook it up! I am sure that it is an analog input, but the potentiometer I have has no wires or anything and the "analog inputs" port on my RC looks likea parallel connection of some sort... here's a picture of my OI and RC (actually, not mine, but it seems to be the same model): http://www.teamlogicom.com/images/01407006.jpg

my potentiometer basically looks like this (not exactly, but i think its pretty close): http://www.labyrinth.net.au/~steve/opto/wheel_pot.jpg

So... I am lost. Can anyone set me on the right path?

ARP