Hi,
I suppose that you've not installed the NI-435x driver. That's probably the reason why you're missing the initialize VI.
You can download the driver here:
http://digital.ni.com/softlib.nsf/954feaeea92d90918625674b00658b83/ea919585407a2bb086256e2f0054f3fd?OpenDocument
Hope this helps.
Luca
Regards,
Luca