Theme doesn't work properly

I’ve bought and installed this theme https://themeforest.net/item/domag-l-flat-responsive-retina-wordpress-magazine/6893226 .

But I don’t understand how get the theme to look the way it does with the different menues and the slidewhow etc.

I can only, either get the the normal blog roll layout or activate a static page as the home page. I tried activating the different widgets but it nothing happens.

What am I missing?