Yeah, I was a bit unclear on the matter. What I wanted to say is that VNC is an option only if the VNC server is running on the server, or for that matter a PC that can connect to a Sabre server, and serve as a tunnel, since you can not VNC directly to a web portal, which is Java. Hope this clarifies it a bit.
Though the problem with PC that is connected to Sabre and running VNC server, is that you can only access it if you're in your home network, or if you have a static IP address (which most people do not have). So the problem is what if you're on a business trip and you need to connect to Sabre, using your NIT, from say an airport?