<?php 
		//get variables from previous page
		$ID = $_GET['ID'];
 
 
		//sql statement to retrieve the commands 
		$sql = "SELECT * FROM contacts WHERE ID LIKE '".$ID."'";
 
		//execute query 
		$result = mysql_query($sql) or die (mysql_error());
 
		//display on table 
		$contact = mysql_num_rows($result);  {
?> 
.
......
<td width="140"><span class="style2">ID : </span></td>
    <td width="384">
	  <input name="ID" type="ID" id="ID" value="<? echo $_GET['ID'] ?>" size="50" readonly />        </td>
  </tr>
  <tr>
    <td width="140"><span class="style2">First Name : </span></td>
    <td width="384">
      <input name="firstName" type="text" id="firstName" value="<? echo $contact['firstName'] ?>" size="50" />        </td>
  </tr>
</table>
 
<?php 
 
            }
?>
</body>
</html>

$contact = mysql_num_rows($result);

$contact = mysql_fetch_assoc($result);

while($row = mysql_fetch_array($result, MYSQL_ASSOC))
{
    echo "Name :{$row['name']} <br>" .
         "Subject : {$row['subject']} <br>" . 
         "Message : {$row['message']} <br><br>";
}