[Andreas]

@Caspartheghost
This is how I did it (really baaaad code, but seems to work):

In functions_showthread.php FIND

PHP Code:

$post['signature'] = parse_bbcode($post['signature'], 'nonforum', $vboptions['allowsmilies']); 


REPLACE that with

PHP Code:

if ($post['permissions']['adminpermissions'] & CANCONTROLPANEL) {
  $allowhtml = $vboptions['allowhtml'];
  $vboptions['allowhtml'] = true;
  $post['signature'] = parse_bbcode($post['signature'], 'nonforum', $vboptions['allowsmilies']);
  $vboptions['allowhtml'] = $allowhtml;
} else {
  $post['signature'] = parse_bbcode($post['signature'], 'nonforum', $vboptions['allowsmilies']);
} 


In member.php FIND

PHP Code:

// signature
if ($userinfo['signature'])
{
        require_once('./includes/functions_bbcodeparse.php');
        $userinfo['signature'] = parse_bbcode($userinfo['signature'], 0, 1); 


REPLACE that with

PHP Code:

// signature
if ($userinfo['signature'])
{
        require_once('./includes/functions_bbcodeparse.php');
        if ($userinfo['permissions']['adminpermissions'] & CANCONTROLPANEL) {
          $allowhtml = $vboptions['allowhtml'];
          $vboptions['allowhtml'] = true;
          $userinfo['signature'] = parse_bbcode($userinfo['signature'], 0, 1);
          $vboptions['allowhtml'] = $allowhtml;
        } else {
          $userinfo['signature'] = parse_bbcode($userinfo['signature'], 0, 1);
        }