$vk_post = mysql_result(mysql_query("SELECT `vk_post` FROM `news` WHERE `id` = '$id'"), 0);
if($vk_post > 0) {зачем??? елси
if($res['vk_post']>0) { $vk_post = mysql_result(mysql_query("SELECT `vk_post` FROM `news` WHERE `id` = '$id'"), 0);
if($vk_post > 0) {if($res['vk_post']>0) {