I am unable to write to the Microsoft UAM folder from the Macintosh?

A. The UAM (User Authentification Module) volume that shows up by default with SFM is set to read-only for the macs (except for Administrators). To change this start File Manager (winfile.exe) or Server Manager (under NT 4.0), from the MacFile menu choose View/Modify volumes. Select the volume, and clear the "This volume is read-only". You may also change permissions by clicking properties, then permissions. Permissions for Mac Users are set separately from standard NT file permissions.