Replacing water pump on ford focus.

HELLO,

i have a ford focus wagon se, 2L engine. it has about 99,000 miles on it, and never had anything replaced except brakes, and a battery, last year. it started leaking coolant today. seems to be leaking from the right side of the engine (right side, when standing in front of car). doesnt seem to be comming from any of the hoses. i see that the hose from the top of the radiator goes to a unit mounted to the right side of the engine, and the coolant may be comming from under this unit. would this be the water pump? i thought the water pump was driven by the timming belt, which i beleive ids on the lefft side of the engine. anyone know where the water pump is for this beast, and how much of a job it is to replace it?...bob