Topic: Arch doubts – EngineThemes

I bought the Arch theme, but I am not web designer, I am trying to make my site all by myself. So I have some doubts. It seems that the theme is already outdated, as the installation guide. We are in the 3.9.1 WordPress. I would like to have the same design that appears on the Arch Theme’s demo page. How do I get that light orange box that goes for the blog page like demo?

Some project pages that I have crated don’t show the images gallery, even that I use the same steps from another page that worked fine.