2000 Ford Taurus Recently Purchased 00 Told Only Power Steering Pump

recently i purchased a 00 ford taurus was told the only problem was power steering pump needed to be replaced after replacing the pump it burned out 1 to 2 weeks later. after inspecting the car it was determined that the power steering fluid was going thru the car because of a leak near the front right end i can see it when i turn the wheel i wanted to know the name of the part and about how much is the part itself