Put his harness on and off you go on a nice long walk, and be sure to take the poo bags with you.
You won't get the puppy house trained as long as he has access to the house. In fact, once they have made a pee and poo on carpet, they will (even after house training) continue to pee and poo once in awhile throughout their lives. That's why it's so extremely important puppies never get access to the house till house training is complete, then you still have to follow them around the first few months that they are in the house because for some reason, carpets make them want to potty on it till they are constantly told it's a big no-no. Puppies need to be in an expen attached to a wire crate, leaving the crate door open at all times, and with pee pad at one end. Then you take the puppy outside every hour to potty and exercise. If they pee on the floor and not on the pad, then take a bit of the pee and put a drop on the pad. They soon get the idea.