If the upper hose is hot and the lower is cold (cool), then the water is not going through the radiator. This could be one of two things, first, the water pump is not pushing water, or the radiator is plugged and it can not get through. Does the engine have heater hose outlets? undo the hot side and see if it pushes water out that hose.
Sounds like you could have lost the impeller off the water pump or its loose, I would start with the pump since the radiator has been cleaned.
Joe
