[jQuery] validate plugin error: $("#short-form").validate is not a function

[jQuery] validate plugin error: $("#short-form").validate is not a function


jQuery JavaScript Library v1.3.2
jQuery validation plug-in 1.5.2
I think I'm using this plug-in straight from the examples for a simple
form. No matter what I have as the last option I get a similar error,
in the case:
$("#short-form").validate is not a function
privacy_policy: "Please accept our privacy policy"
This also throws an error:
jQuery.validator is undefined in additional-methods.js
jQuery.validator.addMethod("maxWords", function(value, element,
params) {
Sorta pulling my hair out at this point as I can't figure out what's
causing either.
Form HTML: (if more HTML would help let me know)
<form id="short-form" name="short-form" action="<!-- cut action -->"
method="post">
    <label for="name" class="first">Name</label>
    <input type="text" class="text" name="name" id="name" value="Your
Full Name" />
    <label for="email">Email Address</label>
    <input type="text" class="text" name="email" id="email"
value="you@youremail.com" />
    <fieldset>
        <input type="checkbox" class="checkbox" name="news_updates"
id="news_updates" value="yes" /><label for="news_updates" class="float-
right">Yes, email me news and updates</label>
        <input type="checkbox" class="checkbox" name="privacy_policy"
id="privacy_policy" value="yes" /><label for="privacy_policy"
class="float-right">I have read and understand the <a href="#">privacy
policy</a></label>
    </fieldset>
    <label for="birth_year">Year of Birth</label>
    <select id="birth_year" name="birth_year">
<option label="" value="null">Birth Year</option>
<!-- cut remaining options-->
</select>
    <button type="submit" id="sign-up" value="sign-up">Sign Up</button>
<!-- cut hidden fields -->
</form>
Javascript:
$(document).ready(function() {
    $("#short-form").validate({
        rules: {
            name: {
                required: true,
                minlength: 2
            },
            email: {
                required: true,
                email: true
            },
            birth_year: {
                required: true
            },
            privacy_policy: {
                required: true
            }
        },
        messages: {
            name: {
                required: "Please enter a username",
                minlength: "Your username must consist of at least 2 characters"
            },
            email: "Please enter a valid email address",
            birth_year: "You must select a Birth Year",
            privacy_policy: "Please accept our privacy policy"
        }
    });
});