I got a paper from the humane society telling how to housebreak a dog and it worked like a charm. When you see the dog start to go in the house say in a firm voice "stop" and then pick the dog up and take it outside. When it goes outside give the dog a ton of praise and a treat.

Take the dog out the minute you get up and before you go to bed. Walk around with them awhile because it takes them a few minutes to go sometimes. Always give them praise and a treat after they go. I had both Diamond and Jad housebroke it no time doing it that way.