[Scerina]

Okay, am gettin error messages in my threads...when I go to view them I get this:
Parse error: parse error, unexpected ',', expecting ']' in /home/pandy/public_html/boards/includes/functions_showthread.php on line 546

Can someone please look at this coding and tell me if everything is correct and if not, how can I fix it? This is from my functions_showthread.php file that we are suppose to modify for this pacific hack:
// Multiple Signatures Hack by Ethan -- Start of Code Block
// choose a random signature
if ($post['showsignature'] == 127) {
$sigtries = N;
$post['showsignature'] = rand(1, N);
while (($post['signature' . $post['showsignature']] == '') AND ($sigtries> 0)) {
$post['showsignature'] = ($post['showsignature'] % N) + 1;
--$sigtries;
}
if ($sigtries == 0) $post['showsignature'] = 0;
}
$post['signature'] = $post['signature' . $post['showsignature']];
// Multiple Signatures Hack by Ethan -- End of Code Block
// get signature
if ($post['showsignature'] AND $vboptions['allowsignatures'] AND trim($post['signature']) != '' AND (!$bbuserinfo['userid'] OR $bbuserinfo['showsignatures']) AND $sigperms[$post['userid']])
{
// Modified by Multiple Signature Hack, to uninstall change $sigcache["$post[userid]_$post[showsignature]"] to $sigcache["$post[userid]"]
if (!isset($sigcache["$post[userid]_$post[showsignature]"]))
{
$parsed_postcache['skip'] = true;
$post['signature'] = parse_bbcode($post['signature' . $post[showsignature], 'nonforum', $vboptions['allowsmilies']);

// Modified by Multiple Signature Hack, to uninstall change $sigcache["$post[userid]_$post[showsignature]"] to $sigcache["$post[userid]"]
$sigcache["$post[userid]_$post[showsignature]"] = $post['signature'];
}
else
{
// Modified by Multiple Signature Hack, to uninstall change $sigcache["$post[userid]_$post[showsignature]"] to $sigcache["$post[userid]"]
$post['signature'] = $sigcache["$post[userid]_$post[showsignature]"];
}
}

else
{
$post['signature'] = '';
}