Historical Data wanted

[Marc6803]

I'm wanting to get data as far back as possible for all the tickers I watch and trade. My primary broker is TradeStation. I've been told that CSI provides data way back on many tickers. I primarily concentrate on the S&P. My question is can I import data from CSI into MotiveWave for offline work. I want to start my EW counts from the beginning if it's possible. Any thoughts from anyone? Appreciate any comments. Thanks!