How to create Unix user account that only has FTP access and to only one directory?

I'd like to create a Unix user account for someone that will be making changes to files in one directory and I would like to limit that user to only have FTP access and to only have access to that one directory (and the sub-directories below it)

anyone know what I need to do?

Thanks in advance

Start here -> http://www.devshed.com/Talk/Forums/Forum15/HTML/000050.html

You should read the docs of proftpd at http://www.proftpd.net