With VS2010 and the 4.2 SDK installed, or VS2012 and the 4.3 SDK installed, you can install the GHI 4.2 SDK and then install the GHI 4.1 SDK and you get the full compliment of SDKs to target USBizi. Check the “do you have a legacy product” on the Netmf Support page.
Though I can’t remember is the wheels actually moved when it was being debugged or not. It works fine when powered from the batteries but no movement when using USB. I had it on a powered hub to begin with but tried it directly from my computer.