Aw such a sweet puppy! The puppy is probably house trained, but you have to remember, she's in a new place now and has to get used to so many new things, she might be scared. Give her some time and she'll be back to normal. Rember, it does take time for such little things to get used to a new envirnment. Bless your heart for taking the puppy in when the present owners didn't want her. I can't imagine that they said the puppy would be put down if they couldn't find a home for it.