Custom Lightbox code breaks page

[dotman]

We had a marketing company create a pop-up using lightbox. it was tested on a plain html file, but when I try and add the javacripts to the header.php, home.php, or any template, it completely breaks the page.

What happens is the image that should appear in the popup appears above the header image, and the pop-up is empty. Here's the code we added to the test page. The scripts and all images are in a folder called "lightbox at the root. is there anyway to get this to work with the theme/wordpress? Really appreciate any help.

<link rel="stylesheet" type="text/css" href="lightbox/styles.css" />
<script type="text/javascript" src="lightbox/jquery-latest.pack.js"></script>
<script type="text/javascript" src="lightbox/thickbox-compressed.js"></script>
<script type="text/javascript" src="lightbox/script.js"></script>
<link rel="stylesheet" type="text/css" media="screen" href="lightbox/thickbox.css" />

Thanks,
Doug