I found the leak!!, It looks a bit different than the image you have. The white plastic connector (red circle) is where it leaks just that lower arm where it connects to motor. The drain rubber boot looks fine just plastic white part is the problem I can see. Can i just change that part or does that white part come with a new motor? Also is that part easy to replace?, I can't see how it connect to motor
http://www.digitalart.x10host.com/dishwasher.jpg
manowar