The following instructions will remove the "0" number from the notifications module so that only notification numbers appear when there is a notification.


1) First, open /modules/mod_notify/tmpl/default.php 
Then, find the following code (there are three sections of code like this, one for friends, messages, and global notifications):
<i class="tool-icon-notification"></i>
			<span class="notifcount">
			<?php 
			if ($newEventInviteCount) { 
				echo $newEventInviteCount;
			} else { 
				echo "0"; 
			} 
			?>
			</span class="notifcount">
		</a>


2) Next, comment out the echo "0"; code as follows by adding a "//" in front of it:
<i class="tool-icon-notification"></i>
			<span class="notifcount">
			<?php 
			if ($newEventInviteCount) { 
				echo $newEventInviteCount;
			} else { 
				// echo "0"; 
			} 
			?>
			</span class="notifcount">
		</a>

3) Next, the <span> tags need to be moved into the first "if" statement like so...all of the lines of code you can simply copy and paste since this it the final version:
<i class="tool-icon-notification"></i>
			
			<?php 
			if ($newEventInviteCount) { 
				echo '<span class="notifcount">';
				echo $newEventInviteCount;
				echo '</span></a>';
			} else { 
				// echo "0"; 
			} 
			?>