facebook links don't include thumb or excerpt

I’m using v 1.4.4 – have checked the Add OpenGraph meta data box,
added myself as facebook admin, added an image for home etc.

Still when i try to add a link in facebook no thumb or description show up.

Look at the header of one page thos meta data seems to be for og:

<meta content="en_US" property="og:locale">
<meta content="#2: Door to Door Canvassing - riotwire" property="og:title">
<meta content="Paul Martin and Jean Chretien bring Zombie Trudeau out for some canvassing, but they've bitten off a little more than they can chew." property="og:description">
<meta content="http://riotwire.com/cartoon/door-to-door-canvassing/" property="og:url">
<meta content="riotwire" property="og:site_name">
<meta content="article" property="og:type">
<meta content="http://riotwire.com/wp-content/uploads/2013/04/ZT1-resized-294x300.jpg" property="og:image">

However when i test http://riotwire.com/cartoon/door-to-door-canvassing/ – using this https://developers.facebook.com/tools/debug/

I get:

Scrape Information

Response Code: 200
Fetched URL: http://riotwire.com/cartoon/door-to-door-canvassing/
Canonical URL: http://riotwire.com/cartoon/door-to-door-canvassing/

Errors That Must Be Fixed
Can’t Download: Could not retrieve data from URL.

Graph API: https://graph.facebook.com/351662488272668
Scraped URL: See exactly what our scraper sees for your URL
(nothing)

http://wordpress.org/extend/plugins/wordpress-seo/