What kind of motor driver are you using? Do you use any NI hardware? (LabVIEW 2009 and NI assistant are only the software)
For Motion Control, there is another add-on software specifically designed for this purpose, NI Soft Motion and Motion Assistant
You might want to check this link for more tutorial about Motion Control using NI product http://www.ni.com/white-paper/3367/en#toc8
So, It's stepper motor controller.
There should be motion software package included with this hardware. Do you have NI Motion?
If not, you can download from here http://sine.ni.com/nips/cds/view/p/lang/en/nid/10594
Did my previous reply help your issue?
For record purpose, may I know your email address?
Still study NI motion assistant.
Labview can read a text file for tool path.
for axis x, y and z