FAIL (the browser should render some flash content, not this).
Click on a month on the left panel to see the sermon titles for the corresponding month.
To listen to a sermon, click on the date of the sermon on the left panel and click the play button on the media player.
To download a sermon, click on the date of the sermon on the left panel and right-click "Download mp3" on the page that appears and click "Save Link As" or "Save Target As".