Hello I have this code

Code:
alias nav {
  window -p @Explorer
  echo -a $dll(dll\nHTMLn_2.95.dll,attach,$window(@Explorer).hwnd) 
  echo -a $dll(dll\nHTMLn_2.95.dll,navigate,$1-)
}
menu @Explorer {
  Close: { window -c $active }
  join Channel:join $$gettok($sline(@Explorer,1),1,9)
}


.Buzzen Chat List: $nav(http://www.buzzen.net/roomslist.aspx?cat=gn)


But I'v been unable to replace the explorer Menu with my own can you help?