First, change your child style.css code to this:
Theme Name: TwentyEleven Child
Desciption: Child Theme for the Twenty Eleven Theme
Author: Douglas Fayers
After playing with it for a while now, I’ve decided that I hate the plugin you’re using :) If you were happy enough to modify some php slightly, I could run you through how I would change it. Otherwise, someone with past experience with that plugin may be of more use.