Help!! Belt Question

sup guys. i just got an 89 and at the exact moment working on it. replacing the alt. but i thought might as well do the belt. problem is. is has no a/c so i bought the one belt. which is for the alt, crank blah. there is another belt which i am a newb i dont kno what that is. i jus went to part source ask for a belt. another problem is. HOW do i take the belt out. i dont see no tensioner? i got the alt off. but i want to do the belt. thanks for you time. HELP ME.
P/M asap thank you

sup guys. i just got an 89 and at the exact moment working on it. replacing the alt. but i thought might as well do the belt. problem is. is has no a/c so i bought the one belt. which is for the alt, crank blah. there is another belt which i am a newb i dont kno what that is. i jus went to part source ask for a belt. another problem is. HOW do i take the belt out. i dont see no tensioner? i got the alt off. but i want to do the belt. thanks for you time. HELP ME.
P/M asap thank you