First of all you need to have the form syntax right.
I'm not familiar with this type...
<input type="array[firstname]" = name="firstname" size=20>
do something like this..
<html>
<head>
<title>Feedback Script</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body>
<?php
print $POST['firstname'] . "\n";
print $POST['lastname'] . "\n";
print $POST['email'] . "\n";
print $POST['comments'] . "\n";
?>
<table width="30%" border="0" cellspacing="10" cellpadding="0">
<tr>
<td> <form action="feedback.php" method="post">
<strong><font size="2" face="Geneva, Arial, Helvetica, sans-serif">
First Name:<br>
<input type="text" name="firstname" size=20><br>
Last Name:<br>
<input type="text" name="lastname" size=40><br>
Email : <br>
<input type="text" name="email" size=40><br>
Comments: <br>
<textarea name="comments" rows=5 cols=30></textarea><br>
<br>
<input type="submit" name="submit" value="Submit!">
<input type="reset" name="reset" value="Clear Form!">
<br>
</font></strong>
</form></td>
</tr>
</table>
</body>
</html>
