engine belts

The belt on the front of my KA squeel now when i first turn it on, how many belts are there, what are they called and can i change them myself?? If so how, do i just pull these ones off and stretch the new belts on or what?


1 for alt
1 for power steering
1 for airconditioning

the water pump shares a belt I cannot remember which one, but I think its the alternator

water pump is w/ PS pump