Dragging under main sidebar

I’m not sure if I understand your question. What do you mean by showing as a main theme? Can you post a screenshot that illustrates your problem?

Main sidebar means posts, tags and adsense ad. All are located in the main sidebar. Screen shot of my site can be seen https://i47.tinypic.com/28ahwe0.jpg

Can you post a screenshot of the widget page in the admin panel?