I was notified of a response to a question I asked earlier in the day but unfortunately the links within the answer take me to the same page - just flagging it hoping to see it corrected as it would be very useful. Apologies for having to chase this up
Using Xpresso to Pipe an Animated Greyscale Texture into a Vertex Map
First: Please post only tutorial related question in the Tutorial Forum,
Here is a file were I hope it does what you describe:
Screen capture and scene file
The Screen capture shows how to adapt this to an new object.
All the best