It's very simple to plumb the dishwasher into place depending on your plumbing skills ?
you can either get a self cutting tap kit from a DIY store where you clamp it round the pipe to plumb into then screw the tap part onto it and it cuts a hole in the pipe and you put the hose for the dishwasher to that.
Or you can shut off the water and empty the pipes you need to plumb into and cut the pipes and put a T piece in and then a small length of copper pipe coming up and then fit a isolation valve to the ends and then the pipes from the dishwasher to that and then plumb it out as normal ie connect to your waste system like the washer should be
Davey
January 2007