I've installed megabook on my website, and I'm following the tutorial found here (http://www.kiss-my-kitty.com/tutorials/megabook.php), which should enable posters to choose a background. I've done what it says - however it doesn't work!

My megabook can be found here (http://flinchalot.sebszhost.com/cgi-bin/guestbook.cgi). Any help would be appreciated, thanks :)