$aa = mysql_fetch_array(mysql_query("SELECT * FROM `mail` WHERE `id` = '".$id."'"));
$req_m = mysql_query("SELECT `mail`.*, `mail`.`from_login` AS `name`, `users`.`id`, `users`.`sex`, `users`.`rights`, `users`.`lastdate`, `users`.`datereg` FROM `mail` LEFT JOIN `users` ON `mail`.`from_id` = `users`.`id` WHERE `mail`.`to_id`='".$user_id."' AND `del_to`!='1' ORDER BY `time` DESC LIMIT 10 ");- это зпарос