[support] search issue

Hi all, I am having a spot of trouble after upgrading to 5.2 from 4.7. On my site, I have a search box on the upper right. It worked fine in 4.7 but now it sends you to a page that says content error, but if you click "content" tab, it works fine. I have played with the form a bit but can't figure out how to send the info from my form to the results page. http://www.centernetworks.com/ Any ideas are very much appreciated. -- Allen