Hey Danny,
Thank you for the link!
Now I know what is wrong on your site.
You see the module works with ajax -> you are not supposed to be send on the screen where you are sent...
You have a javascript error on your page and that is why the javascript in our module is braking...
I see that at the bottom of the site you include jquery - but you include it (or the module, or component that icludes it) without .noConflict mode. This causes other script on the page to not function properly.
My advise here would be to use the chrome inspector or to install firebug for firefox and look at the console ouput. You should see 0 error messages. Once you achieve it -> the module should work properly.
Kind regards,
Daniel
P.S. Here a little more information on noConflict mode:
docs.jquery.com/Using_jQuery_with_Other_Libraries