JQuery Cycle Plugin

JQuery Cycle Plugin

I am new to this site and i have a question about the JQuery Cycle Plugin for slideshows.  I am trying to get two separate images to either scroll down or fade right under the nav bar.  However, when I have the following script

<script type="text/javascript">
$(document).ready(function() {
    $('#slideshow').cycle({
        fx: 'fade' // choose your transition type, ex: fade, scrollUp, shuffle, etc...
    });
});

running with just a Div tag, it puts the image over the nav bar.  However, if I use a table it works.  My questions is do i have to use a table to get the exact placement when using this script?