I went here:
http://www.wowhead.com/?forums&topic=3464
and followed the directions, it seemed very simple, and I can't get it to work.
I'm hosted on Wordpress, without any paid features. What I was doing, was, from my dashboard, I go to...
->Design
->Widgets
From here I add a text widget then paste the code into the widget (the second box, the body, not the top header box) and click 'save changes'
I get no error messages, it says changes were saved correctly. But when I test my site it doesn't work, and upon opening the widget back up to see if I missed a piece of code there's nothing there.
What am I doing wrong?