CustomField for logged in viewers only.

I'm trying to make the fields from the CustomFields module viewable only by logged in viewers. I've tried wrapping the entire {if !empty($block.customfield.LoadCustomFields.fields)} if statement in the CustomFields.tpl file in an {if $user.isRegisteredUser} statement, but that didn't do anything. In fact if I delete the entire file, the thing still shows the field - even after clearing the template cache.

I'm working on a local server, so no link for that. PHP info is rather long, but it's version 5.2.6 and Gallery is working fine.

G2/system information:

Gallery URL = http://vmserver/gallery2/main.php
Gallery version = 2.3 core 1.3.0
API = Core 7.54, Module 3.9, Theme 2.6, Embed 1.5
PHP version = 5.2.6-3ubuntu4.2 apache2handler
Webserver = Apache/2.2.11 (Ubuntu) PHP/5.2.6-3ubuntu4.2 with Suhosin-Patch mod_scgi/1.12
Database = mysqli 5.1.31-1ubuntu2, lock.system=flock
Toolkits = ArchiveUpload, Exif, Ffmpeg, ImageMagick
Acceleration = none, none
Operating system = Linux vmserver 2.6.28-11-server #42-Ubuntu SMP Fri Apr 17 02:45:36 UTC 2009 x86_64
Default theme = matrix
gettext = enabled
Locale = en_US
Browser = Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.0.13) Gecko/2009080315 Ubuntu/9.04 (jaunty) Firefox/3.0.13
Rows in GalleryAccessMap table = 12
Rows in GalleryAccessSubscriberMap table = 3
Rows in GalleryUser table = 3
Rows in GalleryItem table = 3
Rows in GalleryAlbumItem table = 1
Rows in GalleryCacheMap table = 0

Thanks for the quick reply Dave,

That sort of works. My original mod above worked as well, but the custom field shows up in the summary under the thumbnail for guest viewers regardless. That's why I thought it wasn't working and why, when I deleted the CustomField.tpl file, it was still showing up. Evidently CustomField.tpl is only for the detail view. What I need to know is where the field is being displayed in the summary so I can wrap that in an if statement as well.

Johnny..

Thanks Dave,

Making the following changes (bold) in the last if statement (line 40) did the trick.

  {if !empty($showSummaries)}
    {if $user.isRegisteredUser}
      {foreach from=$item.itemSummaries key=name item=summary}
      <div class="summary-{$name} summary">
        <h6>{$summary}</h6>
      </div>
      {/foreach}
    {/if}
  {/if}