Hi,
Me again !
Just wanted to update that I managed to change the weight from Lbs to Kg.
And I finally got the right zone table weight rate. Its :

Zone 1 Shipping Table
0.250:20,1:30,2:60,3:90,4:120,1000:999

Zone 1 Shipping Table
0.250:20,1:30,2:60,3:90,4:120,1000:999

Zone 3 Shipping Table
0.250:40,1.0:50,2.0:100,3.0:120,4:160,1000:999

Zone 4 Shipping Table
0.250:45,1.0:85,2.0:150,3.0:250,4:310,1000:999

This is working just perfect . Thanks !