I can get the plugin to work on the default themes that come with wordpress like the Twenty Eleven theme or the Twenty Ten. But my proble seems to appear when i activate my own theme. You can check out the page at http://give-a-shout-out.rubiosweb.com/WordPress/?page_id=5 If you can take a look at it and see if you can figure out what might be wrong with it please.
If for any reason you need to get to the admin side you can use
the user name "James" password "tester"
This is a project i am currently working on.