$download_sql = "select bo_table, wr_id from ".$g4['board_file_table']." where bf_datetime like '".$g4['time_ymd']."%' order by bf_download desc limit 10";
$download_query = sql_query($download_sql);
while($dowload_row = sql_fetch_array($download_query)){

$data_bo_table = $g4['write_prefix'].$dowload_row['bo_table'];
$data_row = sql_fetch(" select * from ".$data_bo_table." where wr_id = '".$dowload_row['wr_id']."' ");
echo $data_row['wr_subject'].'<br/>';

}

limit 10 변경하시면 20개면 20으로 변경하시기 바랍니다.
디자인은 알아서 하시기 바랍니다..