Gravity Form Isn't loading. Theme compatibility solutions

Hi All!
Im trying to help a friend out with the Gravity form plugin. They have a WordPress site but it's using a theme that was custom built by someone( whom I don't think knew to much about the wordpress structure). I've placed the short code on a test page a made here http://pct.wpengine.com/test/ and it's not displaying the form. I know this is an issue with the theme because I activated the twenty eleven theme and the form works fine. What would cause this theme not to recognize the short code? Thanks!