Very well done.
In comparison to the themeforrest and temlplatic wp answer themes this new version provides most important qa site features. It lacks a little bit at community building, through missing user pics, facebook login and more options regarding the user site.
Good is, that You dont need the wp overhead.
The advantage regarding other ask an expert similar solutions, is, that it is written in php and not python, which makes problems with some hosting providers.
With some more admin control over the questions and answers and eventually an easier to understand templating system like smarty, this script soon will be best on the market.
Crucial is to attract the themeexperts. once there are many themes available, more users will use it.
I as well tried joomla and drupal to build a good Q&A site, but joomla I dont really like and drupal needs to many modules to make it interesting. For Drupal as well it is not very easy to build new themes.
Actually I am changing some things on the 1.2 version, after that I will use it on my production sites.
Thank You for this excellent work!!!