NAVIGATION
This is quite easy (by O.G., check http://forum.phpwcms.org/viewtopic.php?f=16&t=24425 german only):
<!--FILE_ENTRY_START//--> <div class="fileEntry" style="margin-bottom:10px; padding-bottom: 10px; border-bottom: 1px dotted #CCCCCC;" id="file-{FILE_ID}"> <h2> [FILE_IMAGE_ELSE]<img src="{FILE_ICON}" alt="" border="0" />[/FILE_IMAGE_ELSE] [FILE_IMAGE]<img src="{FILE_IMAGE}" alt="" border="" />[/FILE_IMAGE] <a href="{FILE_LINK}&target=0"{FILE_TARGET}>[FILE_TITLE]{FILE_TITLE}[/FILE_TITLE][FILE_TITLE_ELSE]{FILE_NAME}[/FILE_TITLE_ELSE]</a> </h2> [FILE_DESCRIPTION]<p> {FILE_DESCRIPTION}<br />[FILE_COPYRIGHT] Copyright: {FILE_COPYRIGHT}<br />[/FILE_COPYRIGHT] {FILE_EXT}, {FILE_SIZE}[IS_ADMIN], {FILE_DATE}[/IS_ADMIN] </p>[/FILE_DESCRIPTION][FILE_LONGINFO] …
<?php $content['all'] = render_cnt_template($content['all'], 'IS_ADMIN', !empty($_SESSION['wcs_user_admin']) && $_SESSION['wcs_user_admin'] === 1 ? ' ' : ''); ?>
Save it as /template/inc_script/frontend_render/only-for-admin.php