path problem

[eluser]stv[/eluser]
i change my path from “C:\wamp\www\CodeIgniter_2.1.2\application\controllers\admin/login” to “C:\wamp\www\CodeIgniter_2.1.2\application\controllers\backend\account” and runs on localbost
“The page you requested was not found.”.The previous path is working
i mean i give subfolders like module in controller after that the problem occurs