Welcome Brooke, Dodger Dog, and ScrappysMom. I don't really have any good advice, I just wanted to say hello and to welcome you to YT!!
I have had dogs inside in the past, but it has been a while since they were trained and actually, it was when I lived at home and I think my Grandmother worked with them mainly! We also trained them to go outside. For some reason, I think that seems a little easier, I don't know why. Anyway, I had a yorkie for a few days (long story - she passed away) and obvioulsy I didn't get far working with her, but she was starting out well using her pee pee pads. We are getting another this weekend so I"ll probably be asking for help, too!
