After disabling the iptables service on my installation (Centos 6.4 i686 +NX server (4.0.362) and Windows 7 64bit client) it works.
The ssh tunneling, as per link, also works, while the direct ssh does not, stating the ssh is not enabled on the server.
Shouldn’t ssh be enalbled by default?
Also the session on the client asks me if I want to switch to NX protocol and does not present an option/button to generate a client side log.
regards