After a lot of tearing of hair and gnashing of teeth, jpadie and tsuji helped me with the proper use of checkboxes in a PHP coded form itegrated with a MySQL database. If you woul like to follow the thread, it's located at thread181-27567: After update property on a form.
So, to start. You have a form...
<form id="form1" name="form1" method="post" ction="somepage.php"> <input name = "Suburb" type="text" size="30" value="somevalue from db" />