CRE Loaded (CART) Customization

Greetings, We are attempting to setup a shopping cart system. We have installed and configured CRE Loaded as well as the template we have purchased from TemplateMonster. Everything has gone well so far with the exception of being able to freely customize the Infoboxes within the template to suit our needs. Here is a quick link to the temporary store location. You will notice 3 separate Infoboxes (2 on the left, 1 on the right), with no borders. [login to view URL] What we are trying to accomplish seems fairly simple (in theory), however, I can't seem to get the look that we are aiming for. All we really need is a border around each infobox that will separate the infoboxes from the rest of the page. The option to additionally change the background color of the infoboxes is also desired.