Forum topics not showing

[Tcmaker]

My forum topics is not showing i think its to do with this code can someone give me a fix please

function viewtopic()
{
global $ir, $c, $userid, $h, $bbc, $db;
$precache=array();
$q=mysql_query("SELECT * FROM forum_topics WHERE ft_id={$_GET['viewtopic']}",$c);
$topic=mysql_fetch_array($q);
$q2=mysql_query("SELECT * FROM forum_forums WHERE ff_id={$topic['ft_forum_id']}",$c);
$forum=mysql_fetch_array($q2);
if(($forum['ff_auth']=='gang' AND $ir['gang'] != $forum['ff_owner'] and $ir["user_level"] < 2) OR ($forum['ff_auth'] == 'staff' AND $ir['user_level'] < 2))
{
print "You have no permission to view this forum.

> [url='forums.php']Back[/url]";
$h->endpage();
exit;
}
print "<big>[url='forums.php']Forums Home[/url] >> [url='forums.php?viewforum={$forum[']{$forum['ff_name']}[/url] >> [url='forums.php?viewtopic={$_GET[']{$topic['ft_name']}[/url]</big>

";
$posts_per_page=20;
$posts_topic=$topic['ft_posts'];
$pages=ceil($posts_topic/$posts_per_page);
$st= ($_GET['st']) ? $_GET['st'] : 0;
if($_GET['lastpost']) { $st=($pages-1)*20; }
$pst=-20;
print "Pages: ";
for($i=1;$i<=$pages;$i++)
{
$pst+=20;
print "<a href='forums.php?viewtopic={$topic['ft_id']}&st=$pst'>";
if($pst == $st) { print "[b]"; }
print $i;
if($pst == $st) { print "[/b]"; }
print "</a>";
if($i % 25 == 0) { print "
"; }
}
print "
";
if($ir['user_level'] == 2 || $ir['user_level'] == 4)
{
print "
<form action='forums.php?act=move&topic={$_GET['viewtopic']}' method='post'>[b]Move topic to:[/b] ".forum_dropdown($c, 'forum', -1)."<input type='submit' value='Move' /></form>

[url='forums.php?act=pin&topic={$_GET['][img=sticky.jpg][/url] | [url='forums.php?act=lock&topic={$_GET['][img=lock.jpg][/url] | [url='forums.php?act=deletopic&topic={$_GET['][img=delete.gif][/url]
";
}
print "
<table style='border-style:solid;border-width:1px;border-color:#303030;' width='100%' cellpadding='5'>";
$q3=mysql_query("SELECT * FROM forum_posts WHERE fp_topic_id={$topic['ft_id']} ORDER BY fp_time ASC LIMIT $st, 20",$c);
$no=$st;
while($r=mysql_fetch_array($q3))
{
$qlink="[[url='forums.php?act=quote&viewtopic={$_GET[']Quote Post[/url]]";
if($ir['user_level'] > 1 || $ir['userid']==$r['fp_poster_id'])
{
$elink="[[url='forums.php?act=edit&post={$r[']Edit Post[/url]]";
}
else { $elink=""; }
$no++;
if($ir['user_level'] != 1)
{
$slink="[[url='forumsig.php?ID={$r[']Delete Sig[/url]]";
}
if($no > 1 && $ir['user_level'] != 1)
{
$dlink="[[url='forums.php?act=delepost&post={$r[']Delete Post[/url]]";
}
else { $dlink=""; }
$t=date('F j Y, g:i:s a',$r['fp_time']);
if($r['fp_edit_count'] > 0) { $edittext="\n
[i]Last edited by [url='viewuser.php?u={$r[']{$r['fp_editor_name']}[/url] at ".date('F j Y, g:i:s a',$r['fp_editor_time']).", edited [b]{$r['fp_edit_count']}[/b] times in total.[/i]"; } else { $edittext=""; }
if(!$precache[$r['fp_poster_id']]['userid'])
{
$membq=mysql_query("SELECT * FROM users WHERE userid={$r['fp_poster_id']}",$c);
$memb=mysql_fetch_array($membq);
$precache[$memb['userid']]=$memb;
}
else
{
$memb=$precache[$r['fp_poster_id']];
}
$rank=forums_rank($memb['posts']);
$msg="{$memb['forums_avatar']}";
$msg=strip_tags($msg);
if($memb['forums_avatar']) { $av="[img=$msg]"; } else { $av="[img=noav.gif]"; }
if(!$memb['forums_signature']) { $memb['forums_signature']="No Signature"; } else {$memb['forums_signature']=$bbc->bbcode_parse($memb['forums_signature']); }
$r['fp_text']=$bbc->bbcode_parse($r['fp_text']);
print "<tr bgcolor='#404040'>
<th align='center' width=20%>Post #{$no}</th> <th align='center'>Subject: {$r['fp_subject']}

$t $qlink$slink$elink$dlink</th>
</tr>
<tr bgcolor='#404040'>";
$mycolor="";
if($memb['user_level'] == 2)
{
$mycolor="blue";
}
if($memb['user_level'] == 1 && $memb['donatordays'] == 0)
{
$mycolor="gray";
}
if($memb['user_level'] == 1 && $memb['donatordays'] > 0)
{
$mycolor="lightblue";
}
if($memb['user_level'] == 4)
{
$mycolor="purple";
}
if($memb['user_level'] == 3)
{
$mycolor="green";
}
if($memb['user_level'] == 5)
{
$mycolor="orange";
}
print"<td valign=top><center>[url='viewuser.php?u={$r[']<font color='$mycolor'>{$r['fp_poster_name']}</font>[/url] [{$r['fp_poster_id']}]
Level: {$memb['level']}</br>Posts: {$memb['posts']}</br></br></br>
$av

</br></br>
Rank:</br><font color=red>$rank</font></center></td>
<td valign=top>{$r['fp_text']}
{$edittext}

-------------------

{$memb['forums_signature']}</td>
</tr>";
}
print "</table>";
$pst=-20;
print "Pages: ";
for($i=1;$i<=$pages;$i++)
{
$pst+=20;
print "<a href='forums.php?viewtopic={$topic['ft_id']}&st=$pst'>";
if($pst == $st) { print "[b]"; }
print $i;
if($pst == $st) { print "[/b]"; }
print "</a>";
if($i % 25 == 0) { print "
"; }
}
if(!$topic['ft_locked'])
{
print <<<EOF



[b]Post a reply to this topic:[/b]

<form action='forums.php?reply={$topic['ft_id']}' method='post'>
<table style='border-style:solid;border-width:1px;border-color:#303030;' width='80%' cellpadding='5'>
<tr>
<td align='right' bgcolor='#606060'>Subject:</td>
<td align='left' bgcolor='#404040'><input type='text' name='fp_subject' /></td>
</tr>
<tr>
<td align='right' bgcolor='#606060'>Post:</td>
<td align='left' bgcolor='#404040'><textarea rows='7' cols='40' name='fp_text'></textarea></td>
</tr>
<tr bgcolor='#404040'>
<th colspan='2' bgcolor='#404040'><input type='submit' value='Post Reply'></th>
</tr>
</table>
</form>
EOF;
}
else
{
print "


[i]This topic has been locked, you cannot reply to it.[/i]";
}
}