Tabs show up as a list

I created a post with the tabs, but the two tabbed post sections (storify and a google map) appear as a list insted. Look here: http://www.freereporter.info/2013/01/22/carbon-scam-boosts-pollution-in-the-eu-post-ui-tabs/
Please help!

http://wordpress.org/extend/plugins/wordpress-post-tabs/