marwi:
I removed the 330 ohm resistor and connected the pin 9 directly to the gate and the pulldown resistor. but it still doesn't seem to get powered...
Don't remove the 330 ohm resistor. There is no way it can be causing the arrangement not to work. 330 ohm; 220 ohm - you will see no difference.
First things first. Connect the Arduino to just the 330 ohm resistor and a LED on your breadboard and verify that the LED is being controlled as you expect.