I want to know what is the best company which provides FX trading,,, I've heared that there is alot of companies fooles alot of peoples, I want to know how does the big companies or the banks work in FX trading or through who? I want trusted broker or companies. and what about RealTrader company is it trusted?

Most Forex brokers are lousy. Simply go to http://www.forextopten.com/forex-broker.html and http://www.forexpeacearmy.com/public/forex_broker_reviews and check brokers reviews. Most of them have terrible feedback from their customers.