Thanks to all that have come before me!
This is what I did for Coppermine version: 1.4.3
in displayimage.php find (was line 169 in mine)
// Create the absolute URL for display in info
$info[$lang_picinfo['URL']] = '<a href="' . $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') .basename($_SERVER['PHP_SELF']) . "?pos=-$CURRENT_PIC_DATA[pid]" . '" >' . $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . basename($_SERVER['PHP_SELF']) . "?pos=-$CURRENT_PIC_DATA[pid]" . '</a>';
After add
//**mod on
$info['Picture link'] = '<a href="' .$CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') .$path_to_pic. '" >' .$CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') .$path_to_pic. '</a>';
$info['Thumbnail link'] = '<a href="' .$CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . get_pic_url($CURRENT_PIC_DATA,'thumb'). '" >' .$CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . get_pic_url($CURRENT_PIC_DATA,'thumb'). '</a>' ;
$info['Cut and Paste notes'] =' Cut and paste one of the following to put in a forum thread. Do not use the img link that is part of the forum. If your photo is very large be considerate and use the thumbnail version which allows the viewer the choice of downloading it, and keeps the forum layout smooth.';
$info['Forum code fullsize'] = '[img]'. $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') .$path_to_pic . '[/img]';
$info['Forum code thumb with link back here'] = '[url=' . $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . basename($_SERVER['PHP_SELF']) . "?pos=-$CURRENT_PIC_DATA[pid]" . '][img]'. $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . get_pic_url($CURRENT_PIC_DATA,'thumb') . '[/img]<br />Click to enlarge![/url]';
//**mod off
Edit
the last line respects viewing restrictions. If you want to bypass that so anyone can view use this one
$info['Forum code thumb with link to full size'] = '[url=' . $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') .$path_to_pic . '][img]'. $CONFIG["ecards_more_pic_target"] . (substr($CONFIG["ecards_more_pic_target"], -1) == '/' ? '' : '/') . get_pic_url($CURRENT_PIC_DATA,'thumb') . '[/img]<br />Click to enlarge![/url]';