How do I make part of the submit form available to author and above user levels
From JReviews Documentation
Modify the theme file of the submit form:
And add this code around the content that needs to be hidden from guests and registered users:
<?php if($User->gid >= 19) : ?> // everything here will be visible to authors and above <?php endif;?>
Note: This code will work only in Joomla 1.5. Joomla 1.7 requires specifying a name of the user group.