You need to reorder your html like this
<body>
<div id="wrapper">
<div id="info">
<img border="0" src="PTRCommunity.jpg" width="100%" height="150">
</div>
<div class="menu">
...
You also need to attend to your head section,
<title> Stu Nicholls | CSSplay | Validating drop down cross-browser menu</title>
<meta name="Author" content="Stu Nicholls" />
<meta name="Keywords" content="cssplay, css play, Cascading, Style, Sheets, CSS1, CSS2, CSS, XHTML, w3c, opacity, box model, mozilla, opera, netscape, internet explorer, techniques, layout, three column, validation, validate, navigation, pop-up, pull-down, menus, tips, tricks, css mouseover, mouseovers, CSS experiments, CSS demonstrations, photo, photograph, gallery, slide, slideshow, picture, dropdown, pull up, fly out" />
<meta name="Description" content="CSS - Cutting edge Cascading Style Sheets. Experiments in CSS" />
I am sure that Stu would be delighted that you are learning about CSS by using CSSplay, but using his title etc won't do your site much good. [;)]