I got as far as adding one advertiser, one campaign, three banners, a website and a zone. But I can't figure out how to get the code for each of the three banners to insert into my website pages. I could only get the Invocation Code for one zone.
What is a zone, anyway? I want to have ads appearing in three places on my website: top middle, top left and top right. Are these three different zones? Or does "zone" mean something else?