To add things to the list of items in the menu, open menupal.php and find this:
}
echo "$tableEnd{$wrapper[$wrapnum]['table_footer']}";
?>
ABOVE it, add your URL's like this:
echo "$rowStart<a href="http://www.yoursite.com/whatever/page.html">My Links</a>$rowEnd2";
echo "$rowStart<a href="http://www.yoursite.com/whatever/another.html">Another Page</a>$rowEnd2";
echo "$rowStart<a href="http://www.yoursite.com/whatever/lastone.html">Last One</a>$rowEnd2";
Hope that helps.