Browser display issues

I am using the Q & A plugin in a project. Please see the link below:

I have a few queries on this plugin:

1. Please see the attached images as viewed on different browsers - IE, Chrome & Opera. The display in Chrome is not as desired. How do I solve this.

2. How can I have the area marked inside the red frame in opera.jpg on my home page?

3. Please see the picture qna.jpg. The question details are not shown on the "Activity Stream"

4. Pls see the image rep-points.jpg, How can we set up the reputation points and badges like you have set them on your site. Not the same, but similar. Does it use the Reputation Points in Q & A or is there any other plug in for that? I currently use cubepoints, but I dont actually need that if yours would work as desired. Thanks!