Can I change size of images in facebook stream

I'm new to JFBConnect and have created a facebook newsfeed module with two channels for two facebook pages. The photos posted to either facebook page show up as very tiny images in the feed. Users really can't tell what they are because they are so tiny and you can't even click them to enlarge them, or click to see them on facebook, or anything. This is frustrating for those who actually want to see the photos, rather than a very tiny preview.

Am I missing something or is there a size setting for images? Or can this be changed through CSS? I've used firebug, but can't seem to locate anything that determines the size of the image.

Thank you. The site officially goes live in a few days, so this link may change, but here is the current link:

new.cccdillsburg.com/index.php/connect/events

You will see the photo of a little boy about halfway down. This is typical of the photos from facebook.