You might find a free repair manual here: http://bit.ly/autozone_repair_info or go to http://bit.ly/alldata_repair_manuals or http://bit.ly/mitchell_repair_manuals_online and get an online repair manual subscription.
The water pump runs via the timing belt. If you have more than 30k miles since your timing belt service i would suggest getting the whole kit . tensioner, idle roller , belt, water pump and thermostat. This is an interference engine. You cant afford to make a mistake. I would suggest finding someone who has done it more than once.someone who will take the time to make sure it is all correct