[jQuery] Strange issue with crossSlider

[jQuery] Strange issue with crossSlider


I'm working on a website which utilizes crossSlide, a jQuery plugin.
It works in IE6/7 on the website itself but not on mine, while I use
the same code. What's wrong? I tried using 1.2.3 instead of 1.2.6 but
that didn't work either.
URL:
Site: http://84.86.134.134/swart/?p=home
Plugin site: http://www.gruppo4.com/~tobia/cross-slide.shtml
Code:
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
    <script type="text/javascript" src="js/jquery-1.2.6.min.js"></script>
    <script type="text/javascript" src="js/jquery.ifixpng.js"></script>
    <script type="text/javascript" src="js/jquery.cross-slide.js"></
script>
    <script type="text/javascript">
    //<![CDATA[
    $(document).ready(function() {
        // fix png IE6-
        $.ifixpng('img/pixel.gif');
        $('img[@src$=.png]').ifixpng();
        // fix fade
        if($.browser.msie && $.browser.version < 7) {
            $("img#fade").css("bottom", "69px");
        }
        // diashow
        $('#picture').crossSlide({
            sleep: 2,
            fade: 1
        }, [
            { src: 'img/picture/home.jpg' },
            { src: 'img/picture/intro.jpg' }
        ]);
    });
    //]]>
    </script>
    <div id="picture">Loading...</div>