Join Probleem

<?
        $sql = mysql_db_query($afdeling,"
        SELECT
            p.*,
            c.id AS c_id, c.soort, c.type AS c_type, c.serienummer AS c_serienummer, c.nummer AS c_nummer,
            f.website, f.naam, f.naam,
            l.locatie AS l_locatie,
            g.id AS g_id, g.totaal AS g_totaal,
            t.id AS t_id, t.type AS t_type, t.serienummer AS t_serienummer
        FROM
            hardware_patchpunt p,  
            hardware_locatie l
        LEFT JOIN
            hardware_computer c ON (c.patchpunt = ".$_GET['id'].")
        LEFT JOIN
            hardware_telefoon t ON (t.patchpunt = ".$_GET['id'].")
        LEFT JOIN
            hardware_gebruiker g ON (g.id = c.gebruiker || g.id = t.gebruiker)
        LEFT JOIN
            hardware_fabrikant f ON (f.id = c.fabrikant || f.id = t.fabrikant)
        WHERE
            p.id = ".$_GET['id']." && l.id = p.locatie") OR die(mysql_errno().' '.mysql_error());
        $select   = mysql_fetch_assoc($sql);
?> 

<?
        $sql = mysql_db_query($afdeling,"
        SELECT
            p.*,
            c.id AS c_id, c.soort, c.type AS c_type, c.serienummer AS c_serienummer, c.nummer AS c_nummer,
            f.website, f.naam, f.naam,
            l.locatie AS l_locatie,
            g.id AS g_id, g.totaal AS g_totaal,
            t.id AS t_id, t.type AS t_type, t.serienummer AS t_serienummer
        FROM
            hardware_patchpunt p,  
            hardware_locatie l
        LEFT JOIN
            hardware_computer c ON (c.patchpunt = ".$_GET['id'].")
        LEFT JOIN
            hardware_telefoon t ON (t.patchpunt = ".$_GET['id'].")
        LEFT JOIN
            hardware_gebruiker g ON (g.id = c.gebruiker || g.id = t.gebruiker)
        LEFT JOIN
            hardware_fabrikant f ON (f.id = c.fabrikant || f.id = t.fabrikant)
        WHERE
            p.id = ".$_GET['id']." && l.id = p.locatie") OR die(mysql_errno().' '.mysql_error());
        $select   = mysql_fetch_assoc($sql);
?>