The answer realy depends on your hardware. Do you have an NI motion control card, such as the 7344? If so, there are many LabVIEW programs that come with the NI-Motion software. They are located at C:\Program Files\National Instruments\LabVIEW 6.1\examples\Motion\FlexMotion\. Also, if you need help programming your NI motion control card, there is no better tool than Motion Assistant, which is a configurable software tool that builds your LabVIEW code for you.
If you don't have an NI motion control board, then you will have to let me know how you're connecting to the third party controller and amplifier (serial, 3rd party PCI card, etc.)
Kyle V