Yeah? Well let me show you mate.... (Screenshot thanks to: http://www.techpowerup.com/atitool/) You see that graph with the temps on each corner? (Top left/bottom left (Green graph)). Well, that is where it graphs your temperatures... it is quite nifty. A lot better to monitor than a counter or digital numbers in my oppinion.
Hmmm.... that's odd. It really doesn't matter anyways... if it overheats it should kick the OC down a bit. Besides... it takes a lot for ATi's cards to overheat.