I trained her with the CitiKitty Toilet Training Kit >> www.citikitty.com.

The training seat that comes with the kit fits on the toilet with a small amount of litter. During the training you remove four perforated rings from the center of the seat. Once all rings are removed your cat is toilet trained and you don't need the training seat or litter anymore.

just wondering, how can u train a kitty to go potty? not using the kitty litter :S