Typically, these patches include a kitserver folder (containing faces, kits, and balls) and an Option File (containing updated player stats and transfers).
The Option File (usually named KONAMI-WIN32PES6OPT ) must be placed in the Documents\KONAMI\Pro Evolution Soccer 6\save\folder1 directory to reflect the new transfers. Where to Find it
The file you mentioned, HASSAN MOHAMED.rar , is a compressed archive containing the necessary data to update your game.