Cat and Dog problem, help!?

Eventually the cat and dog will get used to each other, but it takes some time. Animals tend to be really nervous when they are in a new environment so they need time to adjust. Also, instead of tapping the kitten on the nose when she hisses "hiss back" by get a little spray bottle and filling it with water. When the cat hisses give her a little spray to let her know she has done something wrong. Since in nature this is what another cat would do to the kitten if it was annoyed