Irrlicht Engine

Hello! I the newcomer and consequently am necessary for me your help. And she consists in that that you have help me as to organize simple COLLISION DETECTION, shown at contact of one cube with another.

I newbie, and not so well know Irrlicht but all the same I try to understand, make something on this engine. And I have faced with a problem, standard examples do not help to resolve it, here that that is necessary to me: I press the button, we admit W... and the object starts to move on an axis x ...