Can't backtest this indicator.....explain for me why can't do backtest and how to fix it

[Forex Phong]

Hi guys. I'm not a programmer. My friend gave me his indicator but I was try to do backtest on MT4. And no result but if I use it on my demo account, this indicator still draw arrow.

So plz check and help me how to fix it.

And if you can help me, I want to add the EMA 34 line into the window of this indicator but I dont know how. 

[William Roeder]

1. What result do you expect? It's an indicator, it's not going to trade. For that you need an EA that uses the indicator in its strategy.

2. Help you with what? You haven't stated a problem, you stated a want. Show us your attempt (using CODE button) and state the nature of your problem.
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