Cordelia was first trained to go inside on the pee pads, but it really wasn't working. We took her to Man's Best Friend for Obedience and house training. She now uses both pee pads and the yard. They recommended that we use pee post in the yard
http://www.petco.com/assets/product_...027913000B.jpg
This pheromone-treated post trains your pet where to urinate.
Simple to use.