You need to play with little hardware also. First of all you need to find a solution to interface movement sensor to arduino. This is as per your requirement. I am sure there is lots of option readily available. Google it. Then you can use output of light sensor to turn ON/OFF light using relay.
there is ON/OFF switch to show whether light is on/off in front panel.
What is the output of sensor
What labview circuit?
you are stuck means that you tried somthing. It is better to show us what you tried so far.
and do not ignore the basic courses.