Put Adsense Code On Article Directory Site

I have an article directory that I would like to start putting ads on. I need it so that the ads show up in the same spots for every article. The site is entertainmentscribe.com. I want an ad to show up for every article right underneath the authors name, at the end of the article on the right hand column. Also when someone searches a category the site comes up with a list of articles in that category. I would like an ad to be places right under the category title and then an ad after every 8th listed article title. I would like to have this done asap. Thanks!