How to get the Foden theme to look like the commercial

Is there a certain way to install a theme? I bought Foden theme, and its so much work, and have to use support a lot. I can’t get the slider revolution in - had to download it as the theme suggested in Wordpress, but it does not show up on front-page and no place to turn it on. Bloks does not show up - I guess I’m doing something wrong or just are missing something. Elementer also it says is in it- but no - no element or show up. Guess I need some explanations. Guess its more me than the theme because the theme in it self look fantastic. Just not showing up the way I thought it should, and now been using hours to find out.