There's a CVI driver
here. It actually includes a LabVIEW llb. The VIs are wrappers around Call Library Function Nodes that call the CVI dll. I'm sure this llb was created by the old import CVI driver tool. The VIs are in LabVIEW version 5.1 so if you have LabVIEW 8.5, you will need to open and save the llb with a version other than 8.5 first. You could also use the latest
Driver Import Wizard and create a LabVIEW driver yourself.