1. Buy a large enough cage to fit a litter box in.
2. Keep the rabbit in the cage for about a week (or until younotice that he/she is going potty in the litter box).
3. Eventually, you can get rid of the cage and the bunny should know where to go.
Don't expect perfection. Rabbits will leave droppings outsideand around their litter box and cage, sometimes even around thehouse. If you notice that he/she is peeing in the wrong partof the cage, scoop up the poo and put it back in the litterbox. If the bunny is not peeing in the litter box, clean upthe pee with a kleenex and put the kleenex in the litter box.