Its been some tiring hours, but I finally have Kubuntu recognizing my D-Link DWA-142 using ndiswrapper. Before that though, finding out what the default login passwords if you're one of those who just dive first into a project was a chore.
However WPA2 is still a bit tricky to configure and I still need to find a configuration that will make it stick. Some inspiration to get things going, I found here. Well, one problem at a time.
The reason of course for all this is to introduce a nested network. And it would really help your various orbiters and media directors if you had the LinuxMCE network on its own separate wireless network.