Forum php

bonjour
j'ai un probleme avec mon forum que j'ai crée grace a un tuto est voila quand je vais sur un sujet que j'ai crée pour example et il y que le premier sujet et les reponse ne sont pas afficher voila le code

Code :

<?php
$host="localhost"; // Host name 
$username="root"; // Mysql username 
$password=""; // Mysql password 
$db_name="ml"; // Database name 
$tbl_name="forum_question"; // Table name 
 
// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect"); 
mysql_select_db("$db_name")or die("cannot select DB");
 
// get value of id that sent from address bar 
$id=$_GET['id'];
 
$sql="SELECT * FROM $tbl_name WHERE id='$id'";
$result=mysql_query($sql);
 
$rows=mysql_fetch_array($result);
?>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td><table width="100%" border="0" cellpadding="3" cellspacing="1" bordercolor="1" bgcolor="#FFFFFF">
<tr>
<td bgcolor="#F8F7F1"><strong>Date : </strong><?php echo $rows['datetime']; ?></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><strong>login :</strong> <?php echo $rows['name']; ?> <strong>Email : </strong><?php echo $rows['email'];?></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><strong><? echo $rows['topic']; ?></strong></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><?php echo $rows['detail']; ?></td>
</tr>
</table></td>
</tr>
</table>
<BR>
<?php
$tbl_name2="forum_answer"; // Switch to table "forum_answer" 
 
$sql2="SELECT (*) FROM $tbl_name2 WHERE question_id='$id'";
$result2=mysql_query($sql2);
 
while($rows= mysql_fetch_array($result2)){ // voila la ligne a l'erreur
?>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<td><table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td bgcolor="#F8F7F1"><strong>Date/Time</strong></td>
<td bgcolor="#F8F7F1">:</td>
<td bgcolor="#F8F7F1"><?php echo $rows['a_datetime']; ?></td>
</tr>
<tr>
<td width="18%" bgcolor="#F8F7F1"><strong>Name</strong></td>
<td width="5%" bgcolor="#F8F7F1">:</td>
<td width="77%" bgcolor="#F8F7F1"><?php echo $rows['a_name']; ?></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><strong>Email</strong></td>
<td bgcolor="#F8F7F1">:</td>
<td bgcolor="#F8F7F1"><?php echo $rows['a_email']; ?></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><strong>ID</strong></td>
<td bgcolor="#F8F7F1">:</td>
<td bgcolor="#F8F7F1"><?php echo $rows['a_id']; ?></td>
</tr>
<tr>
<td bgcolor="#F8F7F1"><strong>Answer</strong></td>
<td bgcolor="#F8F7F1">:</td>
<td bgcolor="#F8F7F1"><?php echo $rows['a_answer']; ?></td>
</tr>
</table></td>
</tr>
</table><br>
 
<?php
}
 
$sql3="SELECT view FROM $tbl_name WHERE id='$id'";
$result3=mysql_query($sql3);
 
$rows=mysql_fetch_array($result3);
$view=$rows['view'];
 
// if have no counter value set counter = 1
if(empty($view)){
$view=1;
$sql4="INSERT INTO $tbl_name(view) VALUES('$view') WHERE id='$id'";
$result4=mysql_query($sql4);
}
 
// count more value
$addview=$view+1;
$sql5="update $tbl_name set view='$addview' WHERE id='$id'";
$result5=mysql_query($sql5);
 
mysql_close();
?>
<BR>
<table width="400" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#CCCCCC">
<tr>
<form name="form1" method="post" action="add_answer.php">
<td>
<table width="100%" border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
<tr>
<td width="18%"><strong>Name</strong></td>
<td width="3%">:</td>
<td width="79%"><input name="a_name" type="text" id="a_name" size="45"></td>
</tr>
<tr>
<td><strong>Email</strong></td>
<td>:</td>
<td><input name="a_email" type="text" id="a_email" size="45"></td>
</tr>
<tr>
<td valign="top"><strong>reponse</strong></td>
<td valign="top">:</td>
<td><textarea name="a_answer" cols="45" rows="3" id="a_answer"></textarea></td>
</tr>
<tr>
<td>&nbsp;</td>
<td><input name="id" type="hidden" value="<?php echo $id; ?>"></td>
<td><input type="submit" name="Submit" value="Submit"> <input type="reset" name="Submit2" value="Reset"></td>
</tr>
</table>
</td>
</form>
</tr>
</table>

et en plus il y a un probleme avec la ligne 46 je crois ( je l'ai preciser )
merci