try to replace this line:
PHP Code:
echo "<td width='20%' align='center'>$ba[id]".makelinkcode("edit","banner_manage.php?s=$session[sessionhash]&action=edit&bannerid=$ba[id]").
with this line:
PHP Code:
echo "<td width='20%' align='center'><img src='$ba[url_to_banner]' border='0' width='40' height='20'>$ba[id]".makelinkcode("edit","banner_manage.php?s=$session[sessionhash]&action=edit&bannerid=$ba[id]").
Regards.