Hi, congrats on the new puppy. Perhaps try a cloth pad, put it on a pad holder
Dog Housetraining Supplies: Protection Tray for use with Piddle Pads® at Drs. Foster and Smith rather than just on the floor, orrr how about putting the pad in one of those small litter boxes for yorkies? when he does go on the pad, reward with a cheerio or other tiny treat. If this fails, train him to go outside? Lots of luck.