Hello,
If you have the FieldPoint drivers installed in the computer where you are opening this VI, then you should find the FP Read.VI on the functions palette of the Block Diagram (right click on any open space of the block diagram => All function => NI Measurements => FieldPoint)
If this VI that you can't find is actually a subVI that was made by the person that made the program, just save it from where it was developed and copy it on the new computer.
If this is unclear or if you have any more questions, please let me know.
Regards,
LA