create custom template for lightbox2
The way I've handled this is by adding a extra $_GET parameter to the end of the lightbox link url-s. For example if the url is http://www.example.com/somepage then you could turn it into http://www.example.com/somepage?lightbox=true. This can be done via javascript if it's troublesome modifying the view - might even be more suitable so that users with javascript turned off will get a better template. Then you can tell Drupal to use a different template for lightbox content this way:

function mytheme_preprocess_page(&amp;$variables) {
  if (isset($_GET['lightbox']) &amp;&amp; $_GET['lightbox'] == TRUE) {
    $variables['theme_hook_suggestions'][] = 'page__lightbox'; // page--lightbox.tpl.php
  }
}