Turn on LED with button Press?

I am still new to the Launchpad and so far I can get a LED to blink, so now I want to control that LED by having it turn on or off( don’t care at this point :p)  when I press a button(switch 2).  However the button always seems to show as being pressed. I have Googled tons and found some examples but none of them seem to work, It seems I have the newer version of the Launchpad and I need a pullup or down resistor.  I read the datasheet and I have tried adding the code for the pull up resistor but I don’t think I did it right. I have included the code below I hope someone can point me in the right direction or point out my errors

Thanks in Advance. 
Chris 

#include  <msp430g2553.h> // For the M430G2553 chip,

void main(void)
{
        WDTCTL = WDTPW + WDTHOLD;               // Stop watchdog timer

        P1REN |= 0x08;							//Turn on PullUp on????? How do you turn it off?

        P1DIR &= ~BIT3;                         // Push Port 1 P1.3 (push button) as input
        //P1OUT &= 0x08;                         // Pull down resistor???
        P1DIR |= BIT6;                          // Set P1.6 (LED) to output direction
        P1SEL &= ~(BIT3 | BIT6);                // Select Port 1 P1.3 (push button)
        
        P1OUT &= ~BIT6;                         // Set the LED off

        int value = P1IN & BIT3;
        while( 1 ) {
                if( value == 0)         // Push button down when bit 3 == 0
                        P1OUT |= BIT6;          // Set LED on when button down
                else
                        P1OUT &= ~BIT6;         // Set LED off when button off
        }
}