Home Directory Mapping from Off-Grounds
ITC blocks the ports needed by windows to access shares remotely. You will need to download and use ITC's UVA Anywhere VPN client if you want to map a share. The one downside to this approach is that it slows down your transfer rate.
A less painful approach would be to use SCP (Provided by SecureFX or WinSCP) to transfer your files back and forth.