MJP;
Your PCI-1424 card should include several examples. Check the directory where the software for the camera was installed (Usually "Program Files\National Instruments\NI-IMAQ")
Also, if you have MAX (Measurement & Automation Explorer), you can access your card from there and snap images.
Other than that, I think you have to write your own code or ask somebody to do it for you.
Regards;
Enrique
www.vartortech.com