1. She will only be socialized if you do it. I would start with just a few people you know coming into the home and having them pretty much ignore her. If she's as skittish as you say, you need to establish first that something isn't a threat to her before you can turn it into a friend.
2. The more you spend time around her, feed her, interact with her the more she will bond with you. It takes time, especially when overcoming maltreatment by a previous owner. Can I ask how long you've had her?
3. I'm no ear expert. I think most pups have at least one ear up by 6 months. You could always try taping. There are many threads on here about how to get ears up. Take a look at some of those.