I am in a similar state of confusion after clicking around briefly. One way to approach it is to have a clearer one-liner, e.g. "Deploy and track beautiful targeted ads in 5 minutes" and then spell out how I can accomplish that. So boiling it down to three steps might be:

(1) Create a banner using our templates (and show examples here so I have some idea what you are talking about)

(2) Set your daily budget, ad networks, and demographics. We'll handle the details

(3) Track your progress using our custom campaign monitor

This information would ideally replace your "Free" banner and copy that is the focal point of your design.