... and we're back! Hello SPers ...
You have no submit button.
Some personal preferences of mine:
<form etc ...>
// your form elements
<input type=submit />
I always use single quotes on stringed array keys, you used single and double in your example code, that will end up in confusion. Pick one, stick to it.
I always use CAPS for form method declarations -- jumps off the page at me, and if the form submits to itself, I leave the action blank.
<form method="post" action="<?php echo $_SERVER['$PHP_SELF'];?>">
<form method="POST" action="">