Howdy parkerfly,
You might want to post this question in the
CAN & DeviceNet forum. Visitors who frequent that forum will often offer advice on their experience with third party products, but fair warning, these products aren't officially supported by NI. Since Phytec developed this software package, they might be best to contact for examples. For what it's worth, I did find references to the two commands you mention--
CAN_Register_Hardware and
CAN_RegisterNet--in the PCAN manual on Phytec's side
here.
Warm regards,
pBerg