Problem with Stumbleupon Code For Wordpress

I've read that having a Stumbleupon button on your site is a good thing for generating traffic. I see sites with the Stumbleupon button and if you click on it, you are taken to a Stumbleupon "Thumbs Up" page where the full url of the page you came from (from your site) is there and all you have to do is to click "Thumbs Up" and you are done.

Instead though, if you click on my Stumbleupon button, you go to a Stumbleupon "Add A Review" page but the full url of my post isn't there. That requires the user to go back to my site, copy my url, and then go back to Stumbleupon to give it a "thumbs up" and obviously most people won't bother doing that. And yes, I did add my url into it where it asks for it at Stumbleupons site.

I used the code exactly as it is generated at their site and put it exactly where it is supposed to go (single.php). So the problem isn't that the button isn't working, because it is. The problem is that it doesn't take me to the right page and it doesn't include the entire url of my post. Does anyone have any ideas for how to make this code work properly?

Thank you.
Steve