Okay... I haven't upgraded to 2.2.7 (and I'm not planning to yet!), so I can't say for sure if this will work, but give it a try:
Replace this:
Code:
if (($fview = get_bbarraycookie('forumview', $forum['forumid'])) > $bbuserinfo['lastvisit']) {
$userlastvisit=$fview;
} else {
$userlastvisit=$bbuserinfo['lastvisit'];
With this:
Code:
if (($fview = get_bbarraycookie('forumview', $forum['forumid'])) > $bbuserinfo['lastvisit']) {
$userlastvisit=$fview;
} else {
$userlastvisit=vbdate($bbuserinfo['lastvisit']);
And then insert $userlastvisit into your template where you want the date to appear.