UPDATE: The menu is now in order. Also, Google has given the site a clean bill of health.
PRIOR: We got hacked over the weekend. We believe we’ve traced the problem to the timthumb.com vulnerability affecting many WordPress sites. We’ve plugged that vulnerability, but that has broken the site menus in the process. Please bear with us as we clean things up.
Also, if you visited the site this weekend (to be safe, from Thursday through Sunday afternoon), you should run a virus scanner on your PC just be safe. If you keep your system patched, there shouldnt’ be any issues, but it is better to be safe.