Most pups do come out of their shell eventually. I would recommend ringcraft as well as this way another person is going to touch her no matter how she reacts. If she is still very nervous then you can put her on dorwest scullcap & valerian tablets
http://secure.dorwest.com/prodinfo.asp?number=SV before going into situations that make her nervous. I have used it in the past on a dog that was returned to me and would just not have anything to do with people and would start to shake, they helped him to relax without going sleepy. I used them for about 4 - 5 weeks while training and after that he was a different dog. Great as well for dogs that dont travel very well.
Emma