could someone take a look at this script?

[AK Houston]

can someone look at this script and explain or show why the Gold member users only see the default color in the postbit?

global $vbulletin; 

/// NOTE - Make sure that the $user information includes the MembergroupIDs 
if (!array_key_exists('membergroupids', $user) || !array_key_exists('usergroupid', $user)) 
{ 
    global $vbulletin; 
    $tempuser = $vbulletin->db->query_first(sprintf("SELECT usergroupid,membergroupids FROM " . TABLE_PREFIX . "user WHERE userid=%d",$user['userid'])); 
    $user['membergroupids'] = $tempuser['membergroupids']; 
    $user['membergroupids'] .= ','.$tempuser['usergroupid']; 
} 
else 
{ 
    $user['membergroupids'] .= ','.$user['usergroupid']; 
} 


if (in_array(24,explode(',',$user['membergroupids']))) 
{ 
  /// NOTE - Make sure that the $user information includes the field we are checking for 
  if (!array_key_exists('field16', $user)) 
  { 
    global $vbulletin; 
    $tempuserfield = $vbulletin->db->query_first(sprintf("SELECT field16 FROM " . TABLE_PREFIX . "userfield WHERE userid=%d",$user['userid'])); 
    $user['field16'] = $tempuserfield['field16']; 
  } 
  $my_special_color = ($user['field16']) ? $user['field16'] : 'olive'; 
  $user['musername'] = '<span style="display:-moz-inline-stack;display:inline-block;font-weight:bold;color:'.$my_special_color.';">'.$user['username'].'</span>'; 
  if (strtolower($my_special_color) == 'rainbow') 
  { 
    $len = 16; 
    $base='123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; 
    $max=strlen($base)-1; 
    $randstr=''; 
    mt_srand((double)microtime()*1000000); 
    while (strlen($randstr)<$len+1) {$randstr .= $base[mt_rand(0,$max)];} 
    $user['musername'] = ' 
  <span id="spastic_username_container_'.$randstr.'">' . $user['username'] . '</span> 
  <script type="text/javascript"> 
  set_as_spastic(document.getElementById(\'spastic_username_container_'.$randstr.'\'),\''.$user['username'].'\'); 
  </script>';   
  } 
}

administrators see everyones name correctly the way the color should be. on the other hand, gold members and registered users, etc. users that dont have an admincp or modcp see the username with the people with the plugin as the default color. in this case "olive" and gold member usergroup id "24"
and i get a database error on the "who's online" page for those users
and the product "vsa - advanced forum statistics" does not show up for those users.

could someone help me?

thanks, Houston