Does Anyone know what number to call in order to purchase/recive downgrade cds our school has a volume lisence of windows xp pro and we wanted to us windows 2000 on one, and windows me on another (part of a computer history class) although if we qualify for windows 98/95, we would do it, instead of pirating it also, if it cost $$, can someone give me # and details on how it works thanks dosworld