[sv1cec]

Try this.

In Warn.php find:

$slcomment=$vbulletin->GPC['comment'];

Add below that:

if ($slcomment=='')
{
	$message_left="{$user['username']} could not be warned because you did not enter a reason for the warning. Please  go <a href='javascript:history.go(-1)'>back</a> and try again.";
}
else
{

Then in the same file, find:

$url="showthread.php?p={$post}";
eval('$warn_page .= "' . fetch_template('warn_redirect') . '";');

Replace that with:

}
$url="showthread.php?p={$post}";
eval('$warn_page .= "' . fetch_template('warn_redirect') . '";');

Let me know if it works. Note that I edited the code this morning, so please make sure you are using the latest one, as it appears above.

Also, you do not have to use the "Back" javascript, it will redirect you automatically.