280005 Overlay Ad Setup

I need to have this script configured to my needs: [login to view URL] I want to have it aligned to the left side, halfway down the page when a site loads. I want it to come up when the site loads (not when a button is clicked). I'd also like to change the size of it, as well as add text and an image to it. This should be a quick job, and there are other jobs to follow if it is done well.