DHRU Website Design and Fix

I have a website running the DHRU fusion script. This script only allows the design to be edited through CSS and javascript. So there are .tpl files you can edit. I need the following done: 1. On the mobile site, the banner shows and I only want this to show on the desktop/tablet version of the site. 2. I need 3-4 small content boxes added on the homepage underneath the banner. It would be great if you have worked with the DHRU script before and have experience.