qotwQuestion1a(QuestionId [primarykey], Question, MemberId, PostDate);
qotwVote1a (QuestionId [primarykey], MemberId [primarykey], Vote1a);
qotwMember (MemberId [primarykey], Name, Password, emailId);

$result6 = mysql_query("SELECT MAX(Vote1a) AS highestVote, * FROM qotwMember, qotwQuestion1a , qotwVote1a
					WHERE 	qotwMember.MemberId=qotwQuestion1a.MemberId
					AND 	qotwQuestion1a.QuestionId=qotwVote1a.QuestionId
					AND 	qotwQuestion1a.MemberId=qotwVote1a.MemberId
					AND 	PostDate>='".$startofweek."' AND PostDate<='".$endofweek."'
					ORDER BY qotwQuestion1a.QuestionId DESC ");
while($row6 = mysql_fetch_array($result6))
  {
  echo "The highest voted question of the last week is: "; echo $row6['highestVote']; echo $row6['MemberId'] . " " . $row6['Name'] . " " . $row6['Password'] . " " . $row6['PostDate'] . " " . $row6['Question']." ".$row6['QuestionId']." ".$row6['Vote1a'];
  echo "<br />";
  }

SELECT  *
FROM    (
        SELECT  q.QuestionId, q.MemberID
        FROM    qotwQuestion1a q
        JOIN    qotwVote1a v
        ON      v.QuestionID = q.QuestionID
        WHERE   PostDate BETWEEN $startdate AND $enddate
        GROUP BY
                q.questionID
        ORDER BY
                COUNT(*) DESC
        LIMIT 1
        ) qo
JOIN    qotwMember m
ON      m.MemberID = q.MemberID