If you are working with a 2-part system like Genesis, you’ll need to upload both the Genesis Theme Framework and the child theme of your choice. Again, read my post about choosing a theme for an explanation of this preferred type of system. If you try to upload your child theme and you do not have the Genesis Framework installed, it will not work. I recommend you upload the Genesis Theme Framework first, then repeat the process with your child theme.
Perhaps the most popular network for placing these types of ads is Google AdSense. With this program, you do not need to be in direct contact with advertisers; you simply place the banner on your site, Google chooses ads relevant to your content, and your viewers click on the ads. There are countless similar programs available if you find that AdSense doesn’t work for you, such as Chitika, Infolinks, and Media.net.