Two things (to start).
1. You are calling jQuery twice, which you should not do. This can get a little tricky, since NOF inserts a jQuery call, and you insert a jQuery call with WoWSlider code. Here is a snippet of your page code:
HTML Code:
<!-- Start WOWSlider.com HEAD section -->
<link rel="stylesheet" type="text/css" href="engine1/style.css" />
<script type="text/javascript" src="engine1/jquery.js"></script>
<!-- End WOWSlider.com HEAD section -->
<meta name="verify-v1" content="PPFFsXEMEL9h1+giAZjedJbKgQboN3ZcirWrp+tDacU=" />
<script type="text/javascript" src="./jquery.js">
</script>
<script type="text/javascript" src="./navbars.js">
</script>
<link rel="stylesheet" type="text/css" href="./fusion.css">
<link rel="stylesheet" type="text/css" href="./style.css">
<link rel="stylesheet" type="text/css" href="./site.css">
<style type="text/css" title="NOF_STYLE_SHEET">
Note the
<script type="text/javascript" src="engine1/jquery.js"></script>
and a couple of lines later
<script type="text/javascript" src="./jquery.js">
The tricky part is, the version that NOF automatically inserts will not work with WoW Slider, so you have to "convince" NOF to load a different version of jQuery.
If all of the above is complete jibberish to you, then the easiest way to do this is to put WoWSlider on a separate page using a ZERO_MARGIN masterborder with no navigation. Set the page size to the exact size of your slider.
Then on the Home page, use an I-Frame where you want the slider and use that to load the page with the slider.
2. Yes, there is still a "2". It looks like you did not upload the files to your server. The "/engine1/" folder and everything in it needs to be uploaded to your server.
This code that you have inserted...
HTML Code:
<!-- Start WOWSlider.com HEAD section -->
<link rel="stylesheet" type="text/css" href="engine1/style.css" />
<script type="text/javascript" src="engine1/jquery.js"></script>
<!-- End WOWSlider.com HEAD section -->
...is looking for the files "style.css" and "jquery.js" inside the folder /engine1/ on your server.