JQuery :: Plugin: Combine Features From Multiple Demos?

i'm trying to combine features of these 2 demos: [URL] specifically, i want the ability to use custom error messages and to declare conditions in the page head, as in the 1st demo, as well as to use the accordion feature of the 2nd. if i use the code from the milk demo in the head, e.g.,

$(document).ready(function() {
// validate signup form on keyup and submit
var validator = $("#signupform").validate({

[code]....

validation runs on the entire form, including the sections not yet made visible. this prevents the 'next' button from operating, so the accordion won't expand. if i assign a unique id to the each fieldset & run separate validations for each fieldset, the accordion works, but the validation stops working.