Simply drop one or more of the following div tags in any Sophio template and an ad will appear exactly where the div is placed. If your site is set to show 1 ad, then naturally you can only see a single ad per page. If your site is set to show a max of 5 ads then you could put each of the 5 divs on a page. The exact value you see must be used for it to work.
<div id="rectangle_top5"></div>
<div id="rectangle_bot5"></div>
<div id="leaderboard_top4"></div>
<div id="leaderboard_bot4"></div>
<div id="wideskyscraper"></div>