I have a problem with disk redirection from terminal to Windows 2008. If you log into a new session, disks are not redirected. But if you disconnect from this session without closing it, and then connect again - disks will appear.
I connect using this command:
rdesktop -k en-us -r disk:flash=/media <ip-address>
Version of rdesktop - 1.6.0.
It seems to me, that this is a bug...