Where is the valve located on the so that i can drain antifreeze for the radiator and the radiator reservoir tank? also my upper thermostat housing is leaking i want to save money and replace the part my self how hard is it to do it your self? its a v6

The drain plug should be on the bottom of the radiator on one of the sides. The thermostat housing is not that hard to replace. Make sure you bleed the system after your repair. Trapped air can cause over heating.

Can't blame 'anyone' for wanting to save a buck BUT... Something you should certainly consider before attempting to do the work is the strong possibility that a problem may occur and then you're left with no way to drive your vehicle in to a shop for repair and be forced to have it towed in anyway.. that's just mo-money!.. It's most likely drivable as is sits now, just fill up cooling system.. Maybe have this done at an auto repair shop instead, should not be that expensive! .. Just saying.