You can access the CS fileshares from a computer on the self managed network or while connected to the VPN (you will need to use the "gateall" VPN configuration). To access the filesystem, go to Start>Run and type:
Enter your Brown Account credentials when prompted. Unless your computer is bound to the University's Active Directory, your username will need to be prepended with 'ad\', e.g. ad\jcarberr
To go directly to your home directory, go to Start>Run and type:
replacing jcarberr with your own username. Enter your Brown credentials as described above.