I would just like to add my tuppence to this if thats ok with everyone :)
It really is early days for this girl and far too soon for her to be going out and facing the big wide world. She needs time to bond with and trust you, your family and know that no human is again going to harm her. The best place to teach her this is where she feels safe.. at home.
When your guests arrive ask them NOT to make any eye contact with her or speak to her or pat her for the first couple of visits, then once she has seen them a couple of times and feels more comfortable with them ask them to make eye contact very briefly and in a warm voice tell her 'good girl' then leave it at that. Progress to them calling her over with a small treat when she feels comfortable enough to go to them. If she chooses not to go then thats fine just leave things be.
If you pick her up you are reassuring her in the way you would another 'human' when they become distressed or fearful (like a child) the best way to teach her that there is nothing to worry about is in fact not to do ANYTHING. If she sees you're not bothered then she wont be. Just carry on and ignore her till she settles down and then call her to you. Again if she chooses not to come then dont worry about it, just leave her be.
These dogs really do need time, patience, understanding and for things to be done at THIER pace, each one is different after all!
Hope that helps a bit
Carmen x