If, for instance, you have your monthly report pages named like "2006may.php", you could do something like this:
$query = "SELECT date_delivered, DATE_FORMAT(date_delivered, '%Y%b') AS month_delivered " .
"FROM my_table ORDER BY date_delivered ASC";
$result = mysql_query($query);
while ($row = mysql_fetch_assoc($result)) {
echo 'Date Delivered = ' . $row['date_delivered'] .
' <a href="path/to/month/page/' . $row['month_delivered'] . '.php">Month Link</a>';
}
}
Keep in mind that this is just a bare-bones example.