mount -t cifs //machine.omg.unb.ca/share_name /mnt/mountpointMake sure that /mnt/mountpoint exists...! It may prompt you for a username or password if the windows server is looking for that sort of thing. This will be the username/password that you would use to login to the windows machine, NOT your linux username/password.
To unmount, become root again and type:
umount /mnt/mountpoint