Maria,
If you look at the source HTML of your page, at the top, there are other extensions that are adding the logo and slideshow image as Open Graph tags. JFBConnect is properly inserting the X-Large version of an image further down the page, but at the very top, you'll see this line:
<meta property="og:image" content="http://www.kelifestyle.com/images/logoface.jpg" />
That's not from JFBConnect. In the debugger, you'll see that's the first image, whereas the image that JFBConnect links to is the 2nd image:
developers.facebook.com/tools/debug/og/o...-zambombas-flamencas
You'll need to remove that extra tag. I don't have any ideas as to what plugin, extension, or template is inserting it, but it's not JFBConnect.
Alex