applying the downloaded mod

I'm having trouble applying a downloaded mod for flight simulator 2002, i have downloaded it but i do not know what to do next, there are no instructions for it, is anyone willing to help me out?
the mod I downloaded is: FS2002 Default Boeing 747-400 Replacement Textures Figuring Typical Passenger and Cargo Airlines Worldwide
the mod I downloaded is: FS2002 Default Boeing 747-400 Replacement Textures Figuring Typical Passenger and Cargo Airlines Worldwide