How do you change the alternator belt on a 2002 Kia Sedona?

Go to autozone.com and you can get some basic information on your vehicle. Chances are you have a serpentine belt that runs everything. They're not difficult to replace as long as you follow the routing diagram in the engine compartment (usually a sticker located on the core support near the radiator or on one of the belt covers) and have a wrench that will fit the idler pully. If you're not mechanicall inclined, take it to a mechanic.