Yes, I saw that but it doesn’t work too well if you can’t use Network Manager to begin with.
See bug 55434 that I reported in december about this.
https://answers.launchpad.net/ubuntu/+question/55434
I had to switch to WiCD which did allow me to do WiFi at work.
Now, it may be possible that I could use network-manager-vpnc with WiCD but I couldn’t find a way to do that.