I don't have Zbrush yet, but a friend of mine does and I will have access to it while I'm housesitting.  This will give me an chance to evaluate for my needs and see if it will be worthwhile for me to spend the money.  I have been collecting tutorials to try out, but I am looking for one that will allow me to do the following:  

Take a model in DS Pro 4.6, for the sake of this question I'll use the GENESIS model, and using GoZ send it to ZB 4.5.  I already have a texture that I want to use for GENESIS but I want to create a morph and make some modifications to the texture to match.  I then want to send it back to DS with the newly modified texture.  I haven't found a tutorial that shows me how to do this.  I have found several that have alluded to being able to do this, but nothing specific.  If somebody can point me to a tutorial or even a place to start, I will be extremely grateful.

On a side note, any model can be used in the tutorial, even a simple primative.

Thank you in advance!