okay I have returned the rheostat and I'm going to find a better one. I just installed the inner-linner for the tank and I decided to take a quick picture:

http://img509.imageshack.us/img509/8998/img0003e.jpg

I'm sure thats the correct way to install it, so please correct me if I'm wrong.

I have ordered the new hides, and leaves and they should arrive soon. I am thinking of returning that digital thermometer and just getting the accurite with probes from walmart.