MS Ftp server

Having a small issue with MS Ftp server. User is logging into the FTP root, and is being automatically placed into a subfolder because the subfolder matches their user name. I understand this is normal behavior, but two things:

1) I cannot change the directory structure/names
2) I must have them log into the current FTP root.

So, essentially I need to turn "off" this behavior by MS FTP server so it no longer tries to read the login name and match it to a sub directory.

Any help please?

*lin*