Welcome to Pets.ca
eblpayne 
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Has your pup been seen by a vet recently? UTI has been ruled out?
If so, you may find this article useful:
http://www.hsus.org/pets/pet_care/ou...etraining.html
Vigilance and praise is the key to successfully house training your pup. It may take longer for some than others so please be patient with the little guys.