直接网上下了个4.2的ckeditor,ie6无法工作


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//N" E"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title></title>
<meta http-equiv="Content-type" content="text/html;charset=utf-8">
<script src="../ckeditor.js" type="text/javascript"></script>
</head>
<body>
     <form>
     <textarea class="ckeditor" cols="80" id="editor1" name="editor1" rows="10">
今天天气不错
</textarea>
 </form>
</body>
</html>怎么破？ckeditorHTMLIE6