Hey, I know the great feeling you have when progress is achieved in this department. See my own cat/dog story in the "Dog Behaviour" section, in a thread called "Dogs and Cats Living Together": http://petoftheday.com/talk/showthre...threadid=30377

Young dogs do eventually learn and mature, but it often takes a lot of time and patience. Just when you think you're never going to get a behaviour problem under control, they suddenly "get it"....