Schola,
You may want to try to get in touch with Data Translation and see if they can provide you with any insight as to what is happening here.
The VIs you have posted rely on having certain Data Translation written llb files which I don't have so I am unable to see how they were intended to work. Perhaps another member of the community has used these VIs before and can offer some guidance?
Best of luck getting this up and running,
Simon H
Applications Engineer
National Instruments