Mysql Shoutbox Problem

Hello I'm having a problem hope someone can help because I really don't understand what I'm doing really here is some of the code I'm trying to do a shoutbox with avatars but avatar isn't the problem I'm having and would just like to get the shoutbox working I post and the text doesn't appear the problem probably has a really simple solution but I can't see it, thanks for any help.



echo "
<TR>
<TD ALIGN='CENTER' BGCOLOR=\"$row_color\"><A HREF=\"".$shoutboxx['url']."\">".$shoutboxx['post_by']."<BR>".$shoutboxx['avatar']."</A>:</TD>
<TD BGCOLOR=\"$row_color\">".$shoutboxx['content']."</TD>
";
$row_count++;
}
echo "</TR></TABLE>";
}
function shoutAdd(){
include("db.php");
if($_POST['addShout'])
{
$post_byE = $_POST['name'];
if((!$_POST['name'])){
echo "Required field \"name\" Not complete";
exit();
}
$post_by = htmlentities($post_byE, ENT_QUOTES);
$urlE = $_POST['URL'];
$url = htmlentities($urlE, ENT_QUOTES);
$contentE = $_POST['content'];
$content = htmlentities($contentE, ENT_QUOTES);
echo "<center>Shout Item Added! You will be redirected in 5 seconds...</center>";
$sql = mysql_query("INSERT INTO `shout` (post_by,url,content,post_date) VALUES ('$post_by','$url','$content', NOW())") or die (mysql_error());
exit();
}
echo "
<FORM action='index.php' method='post'>
<TABLE width='410' align='center'>
<TR>
<TD>Name:</TD>
<TD><INPUT type='text' name='name' id='name'></TD>
<TR>
<TD>URL:</TD>
<TD><INPUT type='text' name='url' id='url'></TD>
<TR>
<TD>Content:</TD>
<TD><INPUT type='text' name='content' id='content'></TD>
</TR>
<TR>
<TD align='center' colspan='2'><BR><INPUT type='submit' name='addShout' value='Submit'></TD>
</TR>
</TABLE>
</FORM>";
}
?>