Cadillac Repair: loosening tension on v-belts for 84 caddy deville, crank wheel, v belts

Question
I have an 84 caddy deville with a 4.1 V8. The V-Belt that goes around the main crank wheel, the water pump and I believe the power steering pump or the a/c pump broke. I am trying to replace it but I can't find anyway to loosen the tension to fit the belt around the wheels.... help!!

Answer
If you are mechanicaly inclined or know of someone who is, You will need  picture locations of the components within the system that is causing you problems of which can't be done on this website which only allows one picture. I do not have a website so you will have to e-mail: onlineautohelp@msn.com in order to obtain the information.