Hi animalhouse. I think your new dog is experiencing some separation anxiety and some confusion. She's confused because she's living in a new house and doesn't really know the rules. She's probably peeing in the house because of nervousness and the confusion.
I would start working with her on some obedience commands. Show her that you are the new leader in a soft, but firm, loving manner. Praise her when she does well, and she will start looking to you for direction. Start hanging out with her and showing her how to do things correctly, before she gets into trouble.
You might visit my page on behavior to help you work on consistency with your pup. The page is
http://loveyourdog.com/behavior.html . It will take time for her to adjust which is normal, but if you don't teach her how to be a good dog in your house with the new rules, she stay confused. Help her out of the confusion so that she learns to love you and your family.