How to add the featured image to the shortcode events archive display

Hi,

I want to display the events list using a shortcode to display the upcoming events but I want to include their featured images.

You can see the basic list here> http://unievents.simplecsr.com/static-events/

...which is generated using [eab_archive]

Can I edit one of the shortcode or other plugin files to include the featured image... and can I protect this using my child theme?

Thanks
Chris