RSS feed with thumbnails

I'm creating a website where I have a classifieds section with featured ads which I can generate an RSS feed with images for.

I am looking for a way to set up an rss reader on my dreamweaver homepage which would scroll through the featured ads, which is easy enough to do with the title and description, but I would also like to include the thumbnails.

I just thought about it because of NetVibes, here's an example on the top left:
http://www.netvibes.com/yelkezin#Noticias_gerais

This google ajax API is perfect if I can figure out how to diplay the thumbnails.

http://code.google.com/apis/ajax/playground/?exp=feeds#dynamic_feed_control_-_vertical

Does anybody know the code to be able to do this? Or information on how to do this?

I've been looking all over but haven't found anything concrete that I understand (I am not a programming expert, just a designer looking to spice up my site) Any tiny bit of information or help will be greatly appreciated.