Well, after week 5 of getting used to her new surroundings, she has relaxed a little more. She is still a bit wary of us and will walk or run away when approached (unless there is food involved). However, if we are sitting she will approach us. We think she really never had any contact with people until she was rescued from the rest area, if she did it wasn't anything positive. The great thing is that she and Biko are getting along famously! They have their play times, there haven't been any food fights and occasionally they will snuggle up together. There is still a lot more work to do - more reassuring, reinforcement, socializing, etc. but I think she will eventually come out of her shell.
Oh, and that droopy tail seen in the previous photos has been replaced by a nice tightly curled one.