Hello everyone, I am trying to program an I2C 24c04 EEPROM using arduino mega 2560 but i don't have a bootloader for that IC. Where can I download the bootloader? please help! thanks 
You are using the wrong terminology, I do not know what you are asking.
A bootloader is programmed into a microcontroller, to allow it to be programmed over serial. A bootloader makes no sense in the context of an EEPROM.
You interact with the chip from within your sketch over I2C, either using the Wire library (or other I2C library) or with a library specific to the 24-series EEPROMs.