My developer figured it out! He changed the feed to an atom feed and it scraped the image. Here's how one of my feeds are set up. It is pulling from a keyword search of "washington county." The ips=300 is contraining the image to a width of 300, so you can adjust that to whatever size you'd like. Just make sure you also add the *|RSSITEM:IMAGE|* to you RSS code where you want the image to appear.
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