Originally Posted by Giselle
Does she have a medical problem? I've heard of a dog who had GI problems that helped to weaken his bladder.
I'm sure you already know this, but have you been watching out for Jersey's potty dance? Also, what about using a bell? If you don't see her potty dance, she can at least ask to go outside (although that would only help if she knew she should pee/poo outside =/).
My last resort suggestion would be to put a female dog diaper on her. I know dogs instinctively don't like to mess on themselves, so perhaps a dog diaper would be just enough aversion to housebreak her.
ETA: I'm sure you know this already, but clean those urine spots well!! I personally bit the bullet and used bleach on the carpet. Then, two years later, we got rid of the carpet altogether :p