With jQuery 1.3.2 and IE 7 & 8, the delegation of the onclick event causes the submit button to not work, when I change the event to occur onchange the form and validation work normally, additionally I am unable to check the checkboxes. It appears that a return false is being generated causing the event to be canceled.

Not sure why a click event is used instead of change event is being used.

.delegate("click", ":radio, :checkbox", delegate);

.delegate("change", ":radio, :checkbox", delegate);