Jason,
I just created a site with SiteSculptor using Corporate > Layer. The index page looks fine but if you go to any other pages, they are pretty messed up in IE6. (I don't have IE7 here to check it out.) Also, look below, the topNavigation is not inside the leftColumn1 div.
<div id="outerWrapper">
<div id="header"><img alt="Logo" src="sitesculptor_assets/home/images/logo.png" /></div>
<div id="topNavigation"><?php require_once("CSSMenuWriter/cssmw_home/menu.php"); ?></div>
<div id="contentWrapper">
<div id="leftColumn1">
<!-- TemplateBeginEditable name="sidebar" --><strong>leftColumn1 Title </strong>
<p>Lorem ipsum dolor sit. <a href="#">More...</a></p>
<hr size="1" />
<p>Lorem ipsum dolor sit amet. <a href="#">More...</a></p><!-- TemplateEndEditable -->
</div>
<div id="content">
<!-- TemplateBeginEditable name="content" -->