Blown Power Steering Pump

:banghead: Today my power steering pump blew. I need to know how hard it is to replace and how to do it without messing something up. Can the car be driven without a power steering pump?(no fluid) I really don't care if I burn the pump up now!

Which hose is it that runs under the car in the shape of a big U? what hose runs under the down tube for the exhaust?