This is the code from header.inc.php (lines 19-31) - the new section is the "resources" line, with the graphic being referenced as "resources_btn".
<ul id="nav">
<?
if(is_object($thisclient) && $thisclient->isValid()) {?>
<li><a class="log_out" href="logout.php">Log Out</a></li>
<li><a class="my_tickets" href="view.php">My Tickets</a></li>
<li><a class="resources_btn" href="resources.php">Resources</a></li>
<?}else {?>
<li><a class="ticket_status" href="view.php">Ticket Status</a></li>
<?}?>
<li><a class="new_ticket" href="open.php">New Ticket</a></li>
<li><a class="home" href="index.php">Home</a></li>
</ul>
<div id="content">
This is lines 122-127 of main.css. Line of interest is the again the reference to "resources_btn" - including the correct path to the image.
#nav a.home { background(../images/home.gif) 0 5px no-repeat; }
#nav a.new_ticket { background(../images/new_ticket.gif) 0 5px no-repeat; }
#nav a.my_tickets { background(../images/my_tickets.gif) 0 5px no-repeat; }
#nav a.ticket_status { background(../images/ticket_status.gif) 0 5px no-repeat; }
#nav a.log_out { background(../images/logout.gif) 0 5px no-repeat; }
#nav a.resources_btn { background(..images/resources_btn.GIF) 0 5px no-repeat; }
The image itself is located in the images folder and is named "resources_btn.GIF".
I hope this sheds some light on the problem...
Thanks