lighting vray problem

hi po mga master,
i have this problem with lighting sa interior...
im using sketch up 8 with vray and if i used the settings sa lighting... hindi po sya nag aapply?
hope matutulungan nyo po ako...salamat po..

madam ito po ung kay sir nomer tutorial.

http://www.cgpinoy.org/t2274-interior-lighting-tutorial_for-beginners

http://www.sketchupartists.org/tutorials/sketchup-and-v-ray/lighting-with-v-ray-for-sketchup-definitive-guide-part-1/