Assuming the 3D Storm is a flybarred heli, you probably have trailing edge control, which means the servo links hook to the back side or "trailing edge" of the blade grips. If this is the case, a lot of things will be reversed and the swashplate will move down for positive pitch. If you set up the dx6I for normal operation, when you go full collective the swashplate will move up thus giving you negative pitch on your blades. To solve the problem you have to reverse the pitch setting in your program menu. After that, check all of your controls cause you might also have to reverse a few other settings for everything to operate correctly, plus you might have to adjust the swash mix settings.
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I don't know too much about this particular heli but just looked at an exploded view of the head and it does have trailing edge control, so give that a shot and it should solve your problem. But, like I said, you might have to reverse some other settings and so or reverse swash mix pitch setting from positive to negative or negative to positive, whichever it may be.
If you need further help, feel free to ask.
