Can't get this to work

Can't get this to work

I have try to combine

- Custom HTML form checkbox and radio buttons (http://plugins.jquery.com/project/custom_radio_buttons)
with
- jQuery Form Wizard (http://thecodemine.org/#_demoForm=first)

as a quiz for kids where answers are colored radio buttons (Green/Red/Yellow).

Somehow custom radio buttons (G/R/Y) are working when I have not "wrapped" all questions, but when I will "wrap" everything to a wizard version custom radio buttons show up only on a first question and all the rest is blank/not displayed.

$("input[type='radio']").custCheckBox() is called at the $(document).ready function

Any idea what am I doing wrong? Thanks

-- Adam