Well basically when I connect everything according to the circuit above, when I turn the potentiometer connected to the pin 5. None of the pins on IC 1 (top IC on diagram) get any signal so no LED gets lit, and only 11-18 pins on IC 2 (bottom IC on diagram) gets lit.
As our friend "Rusty in Texas" mentioned, the reason why it doesn't work is coz there is no resistor on pin 7???
Or maybe the way I have done it, according to the diagram I've put on the thread, is wrong!?