I don't see where the main menu rendered in basic-page.php but it does in the default theme installation. Where is it?
<?php // basic-page.php template file // See README.txt for more information // Primary content is the page's body copy $content = $page->body; // If the page has children, then render navigation to them under the body. // See the _func.php for the renderNav example function. if($page->hasChildren) { $content .= renderNav($page->children); } // if the rootParent (section) page has more than 1 child, then render // section navigation in the sidebar if($page->rootParent->hasChildren > 1) { $sidebar = renderNavTree($page->rootParent, 3) . $page->sidebar; }