ahhh I missed a step, sorry about that...I just started hacking away and wasn't documenting what I was doing...then tried going back and finding all my changes lol
Here...
In showmembers.php Find:
$Reged = $html -> convert_time($Reged,$user['U_TimeOffset']);
Change to
$Laston = $html -> convert_time($Laston,$user['U_TimeOffset']);
and that should do it, I've updated the original post