The question is "How to linearise the sensor response" not "How to do this in LabVIEW".
You need to figure out how to perform the mathematics first, and then implement it in LabVIEW. Once you know the mathematics required, the rest is easy.
You need to place an equation between your acquired data and the values you require (linearised). The equation you have to find yourself, as it is a characteristic of your sensor.
Hope this helps
Shane.
Using LV 6.1 and 8.2.1 on W2k (SP4) and WXP (SP2)