WhiteCap 5.0.5 Serial dont work!

I tried many ways to make it work. It doesent work! Can someone please help me?? Im getting serial code error …
Tried to turn internet off and install then put in serial and put the update evey week to never. DOESENT WORK
Tried to put the text given to me in hosts DOESENT WORK
Answer #1
http://www.google.com?t=1776260&highlight=