Tough situation but Kyle has some good advice (except I don't like E collars). My experience with 2 dogs and the dogs my brother and sister-in-law have had shows that constant leadership are the key. I'm always telling my dogs what to do and they listen. I think it's the same concept with children as they want guidance and structure. A schedule and consistent training will hopefully do the trick. Stern voice commands when the dog does something wrong should work and lots of praise for good behavior. I still give praise for simple things like the dogs taking care of business before we turn in for the night.
It is too bad about the early removal from the litter but I'm guessing the new owner can still make it work. There's got to be some help on the Internet too.