Hi,
Unfortunately, the Instrument Drivers for LabVIEW 5.x no longer exist, since that is a very old version of LabVIEW. I would highly recommend upgrading your version of LabVIEW to the most current one. Unless someone already has the drivers and can send them to you, this is the only solution. You can also write your own drivers.
A.S.
Anu Saha
Academic Product Marketing Engineer
National Instruments