LCD shield and/or LCD serial backpack

hi guys!
I am reading articles for 2-3 days about the nokia lcd and arduino programming.
I have my Nokia 3310 LCD but i can't manage to make it work...

nothing happens to the lcd when I upload the code...It never turns on.
I have gt it out of a working Nokia, and it was working before...
I don't know how to test if it works....
the pins are connected correctly.

WHat is wrong???The lCD should write "hello world!" when i power on my arduino....
I have the Duemilanove board!