试过网上的一些方法，就是在conn.asp中加这两段代码：

Dim dm,sn
dm=Request.ServerVariables("Server_name") '获取域名
if lcase(left(dm,3))<>"www" then
Response.Status="301 Moved Permanently"
Response.AddHeader "Location", "http://www.njtarena.net/"
Response.End
end if

if request.ServerVariables("HTTP_HOST") = "njtarena.net" then
Response.Status="301 Moved Permanently"
Response.AddHeader "Location","http://www.njtarena.net/"
Response.End
end if

结果没有一个是有用的，到底咋回事啊！