When the MOCHA generates the tracking records I exported adn I need to paste this register into a layer in AE that has the image that will follow the movement, correct? When I do this, the image is shifted away from the anchor point. I wonder why.
I'm still not clear what you are saying. Any tracking process produces coordinates relative to the layer, even in mocha. If something drifts, then the most common problem is that you misinterpreted framerates, fields or pixel aspect ratios in either one of the two applications. also keep in mind that mocha always assumes that the layer to use in teh corner pin matches the project size, so if you are uisng a differently sized image, things will not line up.