[jQuery] [tooltip] help please

am not getting the stylized popup window (generic yellow box instead).
all files in my server root folder. please help this newbie; this in
head:

<script type="text/javascript" src="jquery-1.2.6.min.js"></script>
<script src="jquery.bgiframe.js" type="text/javascript"></script>
<script src="jquery.tooltip.pack.js" type="text/javascript"></script>
<script type="text/javascript" src="jquery.tooltip.min.js"></script>
<script type="text/javascript" src="jquery.dimensions.js"></script>
<link rel="stylesheet" href="jquery.tooltip.css" />

<script type="text/javascript">
$(function() {
$('#set1 *').tooltip();
}
</script>

this in body:

<fieldset id="set1">
<label title="A label with a title and default settings, no href
here" for="text1">Write something.</label>
<br/>
<input title="Your input generates a database driven, interactive
response based on subject key words." type="text" value="Test"
name="action" id="text1"/>

</fieldset>