So I ahve edited my meta tags.php and the top bars are all good, but when i try to paste the link to my site into my Facebook page, the description that autopopulates is still

Zen Cart!, The Art of E-commerce
http://www.misterguns.com/catalog/

Zen Cart! : - ecommerce, open source, shop, online shopping

Where is that coming from/ How do I get rid of the Zen Cart lingo?