I can confirm that your site is now using the midmissourina.org domain with your WordPress.com site. Since it is working properly, can you please try clearing out your cache and cookies following these instructions?
http://en.support.wordpress.com/browser-issues/#clear-your-cache-and-cookies
If that still doesn't work, I recommend restarting your computer and trying again.
Your browser is retaining a copy of your old site somehow and hopefully these steps will help clear it up. Let me know if you still have trouble.