Big upgrade to 1.3 beta. Basic things are working.
<link rel="stylesheet" type="text/css" media="screen" href="<?php echo $base_url.'/style/'.$pun_user['style'] ?>/Oxygen.css" />
<link rel="stylesheet" type="text/css" media="screen" href="<?php echo $base_url.'/style/'.$pun_user['style'] ?>/Oxygen_cs.css" />
<!--[if lte IE 6]><link rel="stylesheet" type="text/css" href="<?php echo $base_url.'/style/'.$pun_user['style'] ?>/Oxygen_ie6.css" /><![endif]-->
<!--[if IE 7]><link rel="stylesheet" type="text/css" href="<?php echo $base_url.'/style/'.$pun_user['style'] ?>/Oxygen_ie7.css" /><![endif]-->