Problems after replacing power steering pump
 

First of all, there is still a whining noise. Steering is fine, but there is still a noise. Secondly, after having the car back for less than 24 hours, the "service" light went on. After driving a few miles, a HORRIBLE noise happens when we hit the brakes and the brake light comes on. Brakes seem to be fine until the power steering pump was replaced! Any ideas??? Thanks!