Setup DDRB, SPCR,PORTB for connect RAM 32k with Arduino MEGA????

Hi! I´m trying to connect an external memory RAM 32KB with Arduino MEGA. I connect it with Arduino Duemilanove and I got it, but now I want to do it with the MEGA, and I have to configure the pins MOSI, MISO, CLK and SS (11,12,13,10 in Duemilanove) for to use it with Arduino MEGA. This is how is defined in the SRAM library (Duemilanove):

define setupSPI SPCR = 0x50 //Master mode, MSB first, SCK phase low, SCK idle low, clock/4

define setupDDRB DDRB |= 0x2c //set SCK(13) MOSI(11) and SS as output

define selectSS PORTB &= ~0x04 //set the SS to 0 to select

define deselectSS PORTB |= 0x04 //set the SS to 1 to deselect

And my question is, which address do I have to change for to use it with MEGA device??I found this, but it doesn´t work.

define setupSPI SPCR = 0x2c //Master mode, MSB first, SCK phase low, SCK idle low, clock/4

define setupDDRB DDRB |= 4 //set SCK(13->52) MOSI(11-> 51) and SS as output

define selectSS PORTB &= ~5 //set the SS to 0 to select

define deselectSS PORTB |= 5 //set the SS to 1 to deselect

Thank you everyone!