Instead full explanation, you can use my consol app: http://talk.maemo.org/showthread.php?t=80600 Just read PDF instruction before using this app... Go to tweak H, option 1, this will ask you about changing pass for ROOT and for USER, after this you can use winscp without problem. Also i added this app to tweak OO, and you can easily lock 4 app: mail, gallery, messages, video..