Firstly, where is it leaking from? If its from the gasket seals around the water pump body, you can use rtv sealant to re-seal the water pump.
However, if it leaks from the pulley bearing, I'm afraid you will have to change the entire pump.
Am new here so was hoping that someone could help me with the titled question. I am interested in buying an evo 6.5 tme, and was wondering how I could tell that the car I am looking at is indeed the tme and...