Firstly I commend you on adopting an older pup. She is one lucky gal.
Do you have any background history on this dog? Did she come from a breeding facility?
Crating is a good start but I would put this dog on a routine. Don't walk her too frequently, umbilical train her for a few days and you will see a difference in cleanliness within the whole house.
Does she ask for the door yet?