. Also, until he's trained, he shouldn't be allowed free-run of the house. This is just setting him up for accidents and then leading him to those spots in the future once he gets a scent off them. /quote]
This is good advice, Jen. I like to think of house training as an expansion of crate training. The dog should naturally not want to relieve itself in its crate. I set the crate in one room, and limit the dog's access to just that one room (an expen or a baby gate helps to block doorways/access to other areas). Eventually, the dog will expand it's "crate" to include that one room as long as it is supervised, taken out regularly, and corrected if found eliminating in the room. Once the dog is reliable with this one room--and asking to go out--expand the dog's access to include an adjoining room. As the dog includes each new room in it's non-eliminating area, it will eventually realize that all rooms in the house are just like his crate.
If you take the dog out of it's allowed space to somewhere else in the house, always taken it on a leash. You can even attach the leash to your waist so the dog has to stay with you and you can closely supervise the dog to avoid accidents.