As requested I am posting this all together again:

A note before you add all this. A portion of this is incorporated with another MOD that shows who the ticket is assigned to.

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All of these entries are in include/staff/tickets.inc.php

Replace the original $sortOptions with the following:

$sortOptions=array('date'=>'ticket.created','ID'=> 'ticketID','pri'=>'priority_urgency','dept'=>'dept_name','ass'=>'firstname','timeopen'=>'timeopen');

Replace the original $qselect line with the following:

$qselect = 'SELECT DISTINCT ticket.ticket_id,lock_id,ticketID,ticket.dept_id,ticket.staff_id,subject,name,ticket.email,dept_name,staff.firstname,staff.lastname '.

',ticket.status,ticket.source,isoverdue,ticket.created,pri.*,CASE WHEN status = "open" THEN FLOOR(TIME_TO_SEC(TIMEDIFF(now(),ticket.created))/60) ELSE FLOOR(TIME_TO_SEC(TIMEDIFF(ticket.closed,ticket.created))/60) END AS timeopen,count(attach.attach_id) as attachments ';

$qfrom=' FROM '.TICKET_TABLE.' ticket LEFT JOIN '.DEPT_TABLE.' dept ON ticket.dept_id=dept.dept_id '.

' LEFT JOIN '.STAFF_TABLE.' staff ON ticket.staff_id=staff.staff_id';

On my version I removed the "Created" column as I felt it was no longer needed with an "Age" column replacing it:

<td align="center" nowrap><?=Format:($row)?></td>

<td class="nohover" align="center" >

<?

$diff =$row;

$min = "min";

$mins = "mins";

$hours = "hours";

$hour = "hour";

$day = "day";

$days = "days";

if ( $diff <= 1 ){

print ($diff . " " . $min);

}elseif ( $diff > 1 && $diff <= 59 ){

print ($diff . " " . $mins);

}elseif ( $diff >= 60 && $diff <= 119 ){

$diff = round($diff / 60);

print (1 . " " . $hour);

}elseif ( $diff >= 120 && $diff <= 1439 ){

$diff = round($diff / 60);

print ($diff . " " . $hours);

}elseif ( $diff >= 1440 && $diff <= 2879 ){

print (1 . " " . $day);

}elseif ( $diff >= 2880 ){

$diff = round($diff / 1440);

print ($diff . " " . $days);

}else {};

?>

</td>

Forgot the last part!

Around the lines in 385 or so you'll have several th (table headers). You'll need to add in the following where you want it to show up in the table. (and make sure to comment out your Date column as well or everything will be off by a column)

<th width="92">

<a href="tickets.php?sort=timeopen&order=<?=$negorder?><?=$qstr?>" title="Sort By Age <?=$negorder?>">Age</a></th>

Feel free to ask questions, thanks.