Its painful...
Remove the ancilliaries that run over the top of the pump (vacumn lines etc)
Push them out of the way.
Put the car on axle stands, then support the engine from below with a jack
Remove the belts, crank pulley, then the timing belt covers.
Undo the engine mount, unbolt it from the bracket that holds it to the engine, remove said bracket as well.
Remove the pump pulley wheel.
Remove the pump.
Fit new pump (use new bolts, the old ones will probably have given up the ghost anyways)
Put everything back that you took off.
All of the removal is to get at the ONE bolt that you cant get at behind the engine mount bracket. :shoot: