Arduino POV code not working

i built my POV device similar to the one in this site(Loading...) but the code isn’t working. help pls :-/

// defining the alphabet
int _ = {0,0,0,0,0, 0,0,0,0,0, 0,0,0,0,0};
int A = {0,1,1,1,1, 1,0,1,0,0, 0,1,1,1,1};
int B = {1,1,1,1,1, 1,0,1,0,1, 0,1,0,1,0};
int C = {0,1,1,1,0, 1,0,0,0,1, 1,0,0,0,1};
int D = {1,1,1,1,1, 1,0,0,0,1, 0,1,1,1,0};
int E = {1,1,1,1,1, 1,0,1,0,1, 1,0,1,0,1};
int F = {1,1,1,1,1, 1,0,1,0,0, 1,0,1,0,0};
int G = {0,1,1,1,0, 1,0,1,0,1, 0,0,1,1,0};
int H = {1,1,1,1,1, 0,0,1,0,0, 1,1,1,1,1};
int I = {0,0,0,0,1, 1,0,1,1,1, 0,0,0,0,1};
int J = {1,0,0,0,0, 1,0,0,0,1, 1,1,1,1,1};
int K = {1,1,1,1,1, 0,0,1,0,0, 0,1,0,1,1};
int L = {1,1,1,1,1, 0,0,0,0,1, 0,0,0,0,1};
int M = {1,1,1,1,1, 0,1,1,0,0, 0,1,1,1,1};
int N = {1,1,1,1,1, 1,0,0,0,0, 0,1,1,1,1};
int O = {0,1,1,1,0, 1,0,0,0,1, 0,1,1,1,0};
int P = {1,1,1,1,1, 1,0,1,0,0, 0,1,0,0,0};
int Q = {0,1,1,1,1, 1,0,0,1,1, 0,1,1,1,1};
int R = {1,1,1,1,1, 1,0,1,0,0, 0,1,0,1,1};
int S = {0,1,0,0,1, 1,0,1,0,1, 1,0,0,1,0};
int T = {1,0,0,0,0, 1,1,1,1,1, 1,0,0,0,0};
int U = {1,1,1,1,1, 0,0,0,0,1, 1,1,1,1,1};
int V = {1,1,1,1,0, 0,0,0,0,1, 1,1,1,1,0};
int W = {1,1,1,1,0, 0,0,1,1,0, 1,1,1,1,0};
int X = {1,1,0,1,1, 0,0,1,0,0, 1,1,0,1,1};
int Y = {1,1,0,0,0, 0,0,1,0,0, 1,1,1,1,1};
int Z = {1,0,0,1,1, 1,0,1,0,1, 1,1,0,0,1};

int letterSpace;
int dotTime;

void setup()
{
// setting the ports of the leds to OUTPUT
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);

// defining the space between the letters (ms)
letterSpace = 6;
// defining the time dots appear (ms)
dotTime = 3;

}

void printLetter(int letter)
{
int y;

// printing the first y row of the letter
for (y=0; y<5; y++)
{
digitalWrite(y+2, letter[y]);
}
delay(dotTime);

// printing the second y row of the letter
for (y=0; y<5; y++)
{
digitalWrite(y+2, letter[y+5]);
}
delay(dotTime);

// printing the third y row of the letter
for (y=0; y<5; y++)
{
digitalWrite(y+2, letter[y+10]);
}
delay(dotTime);

// printing the sspace between the letters
for (y=0; y<5; y++)
{
digitalWrite(y+2, 0);
}
delay(letterSpace);
}

void loop()
{
// printing some letters
printLetter(N);
printLetter(E);
printLetter(R);
printLetter(D);
printLetter(S);
printLetter(_);
}

but the code isn't working

What, it's outputting hieroglyphs?

Sorry, but your description isn't very helpful.

I don't see anything that defines the start of a revolution.

haha good one. when i say its not working i mean the LEDs wouldnt blink at all, I tried trouble shooting it and messed around with the digitalWrite portion of the code. only then did the LED blink but the POV was working right. hope this is clear enough now