FTP

Hi, I’ve set some users up with space on our FTP server (W2K server) so that only they can access their individual folders (right clicking folders, permissions). The problem is that on some of the folders other users, who do not have permissions to access, are able to access. I’ve deleted and created the folders and user accounts from scratch but it makes no difference. Also, when right clicking the username in Computer Management and setting the password, the old passwords can still be used to access the FTP folders/area. Any suggestions on how to get around this?