Index: wp-admin/options-permalink.php
===================================================================
--- wp-admin/options-permalink.php	(revision 3279)
+++ wp-admin/options-permalink.php	(working copy)
@@ -143,12 +143,13 @@
 checked="checked"
 <?php } ?>
  /> 
-<?php _e('Custom, specify below'); ?>	
+<?php _e('Custom, specify below'); ?><br /> <span> &raquo; Custom structure has to begin with /, some common variables are %year%, %monthnum%, %day, %postname% </span>
 </label>
 <br />
 </p>
 <p id="customstructure"><?php _e('Custom structure'); ?>: <input name="permalink_structure" id="permalink_structure" type="text" class="code" style="width: 60%;" value="<?php echo $permalink_structure; ?>" size="50" /></p>
 
+
 <h3><?php _e('Optional'); ?></h3>
 <?php if ($is_apache) : ?>
 	<p><?php _e('If you like, you may enter a custom prefix for your category URIs here. For example, <code>/taxonomy/tags</code> would make your category links like <code>http://example.org/taxonomy/tags/uncategorized/</code>. If you leave this blank the default will be used.') ?></p>
@@ -174,4 +175,4 @@
 
 </div>
 
-<?php require('./admin-footer.php'); ?>
\ No newline at end of file
+<?php require('./admin-footer.php'); ?>