http://www.microsoft.com/windows2000...anage_faq.mspx
Q. Can I use environment variables with Folder Redirection?
A. Folder Redirection is only able to process two environment variables: %username% and %userprofile%. Other environment variables such as %logonserver%, %homedrive% and %homepath% will not work with folder redirection.
Q. So I can't redirect to my users' home directories then?
A. Windows 2000 does not support redirection to home directories directly, but you can use the full UNC path to redirect to a home directory. Windows XP allows you to redirect a user's My Documents folder to his or her home directory without using UNC paths, but the redirection to the home directory policy will fail to apply on Windows 2000 clients.