As I pointed out to you in another thread, don't ask for warez on these forums. Go and buy hhalf-life, witch you can get for around $10-$20 in most stores or you can buy it over steam. After that, go create a
Steam account and register your cd key with steam & let it gather the required game content, run half-life training room once (just walk around for 5 seconds then exit the game) and proceed with the installation of esf.