Changing Homepage Layout

I am the owner of the website and I had someone install Magnitude on the website but he is no longer reachable for questions. I don’t have documentation for Magnitude. I can account for the various sections on the homepage except for one which is fixed. I cannot figure out how to change the article with another. As far as I can determine, the site was created with Magnitude and not Magnitude Pro. I was thinking about upgrading to Magnitude Pro, but I don’t know if there is a reason to do so. Is there documentation that I can read which indicates the options?

The page I need help with: [log in to see the link]