Alright, to start of jquery is a open-source Framework branched of of JavaScript. In a simpler description. It's a easy to use library of JavaScript functions. jquery can be used for different page effects or animations of a webpage. The most commonly used effects for jquery is bouncing text, the alert-box, and slide up, slide down, and slide-toggle. I will cover all those effects in later tutorials. Now to start off download jquery here: http://jquery.com/
Now to install jquery into a HTML document type the following into your header or you can just copy/paste:
[HTML]
<html>
<head>
<title>360Haven jquery tut</title>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.5.2.min.js"</script>
</head>
<body>
<div id="contentbox">
<h1>jquery tut</h1>
<p>This is the the first installation to my jquery tuts</p>
</div>
</body>
</html>
[/HTML]