修改问题!修改后数据后台没有变化

<%
 
        lid=request("id")
         set rsU=server.createobject("adodb.recordset")
        sqltext="select * from [user] where id=cint('"&lid&"')"
        rsU.open sqltext,conn,1,1
     
  If request("action")="确认修改" then
        set rsU=server.createobject("adodb.recordset")
        rsU.open conn,1,3
        rsU("user_name")=request.form("user_name")
        rsU("time")=request.form("time")
        rsU("stage")=request.form("stage")
        rsU("type")=request.form("type")
        rsU("source")=request.form("source")
        rsU("contactor")=request.form("contactor")
        rsU("telephone")=request.form("telephone")
        rsU("address")=request.form("address")
        rsU("email")=request.form("email")
        rsU("network")=request.form("network")
        rsU.update
        rsU.close
        response.write "<script language=JavaScript>{window.alert('修改信息成功！');opener.parent.right.location.href='UserInfo.asp';window.close();}</script>"    
        response.end   
End If
%>
按确定后数据还是没有变化,虽然显示修改信息成功,但是根本没有变化,请各位老师帮看看,我已经卡在这里很久了~~~~~~~