[Admin]

Try this, not tested but should work.

In member2.php replace this:

  if (!$checkid=$DB_site->query_first("SELECT $tableid FROM $table WHERE userid=$bbuserinfo[userid] AND $typeid=".intval($id))) {
    $id=verifyid($type,$id);
    $DB_site->query("INSERT INTO $table ($tableid,userid,$typeid) VALUES (NULL,$bbuserinfo[userid],".intval($id).")");
  }

  $url = str_replace("\"", "", $url);
  eval("standardredirect(\"".gettemplate("redirect_subsadd")."\",\"\$url\");");

With this:

  if (!$checkid=$DB_site->query_first("SELECT $tableid FROM $table WHERE userid=$bbuserinfo[userid] AND $typeid=".intval($id))) {
    $id=verifyid($type,$id);
    $DB_site->query("INSERT INTO $table ($tableid,userid,$typeid) VALUES (NULL,$bbuserinfo[userid],".intval($id).")");
  }

  vbsetcookie("bbuserid","",1);
  vbsetcookie("bbpassword","",1);
  vbsetcookie("bbstyleid","",1);

  if ($bbuserinfo[userid]!=0 and $bbuserinfo[userid]!=-1) {
    $DB_site->query("UPDATE user SET lastactivity='".(time()-$cookietimeout)."',lastvisit='".time()."' WHERE userid='$bbuserinfo[userid]'");
  }

  //$DB_site->query("UPDATE session SET userid=0 WHERE sessionhash='".addslashes($session[sessionhash])."'");
  $DB_site->query("DELETE FROM session WHERE sessionhash='".addslashes($session[dbsessionhash])."'");
  // make sure any other of this user's sessions are deleted (incase they ended up with more than one)
  $DB_site->query("DELETE FROM session WHERE userid='$bbuserinfo[userid]'");

  $session['sessionhash']=md5(uniqid(microtime()));
  $session['dbsessionhash']=$session['sessionhash'];
  $DB_site->query("INSERT INTO session (sessionhash,userid,host,useragent,lastactivity,styleid) VALUES ('".addslashes($session['sessionhash'])."','0','".addslashes($session['host'])."','".addslashes($session['useragent'])."','".time()."','0')");
  vbsetcookie("sessionhash",$session['sessionhash'],0);

  eval("standarderror(\"".gettemplate("redirect_subsadd")."\");");