I want to add OnClick Gallery Feature to my theme

In latest wordpress features there are Twenty Eleven veya Twenty Ten Themes,
In wordpress admin panel when u add a gallery into a post images display in a normal order. But When you click on the images in the gallery they are changing everytime u click on the image.

I want to add this feature to my theme.
How can l ?

Here is the gallery working with default wordpress themes
http://webtr.info/turklerden-akil-almaz-pratik-cozumler

This is my theme which is not working
http://dailynewsen.com/entertainment/pregnant-magan-fox-in-holiday-with-sexy-bikini-19178.html