How can I upload a program to a Mega 1280 via Bluetooth?

How can I upload a program to a Mega 1280 via a Sparkfun Bluetooth Mate Silver? I saw in "arduino-0022/hardware/arduino/bootloaders/bt/ATmegaBOOT_168.c" that it said:

/* Adjust to suit whatever pin your hardware uses to enter the bootloader */
/* ATmega128 has two UARTS so two pins are used to enter bootloader and select UART */
/* BL0... means UART0, BL1... means UART1 */

#ifdef __AVR_ATmega128__    // This is the Mega1280 Right?

#define BL_DDR  DDRF
#define BL_PORT PORTF
#define BL_PIN  PINF
#define BL0     PINF7
#define BL1     PINF6