I have two models, one a pyramid and one a later version I deformed in my editor, I’d like to use Zbrush to make a normal map for the low poly one, how can I import them and then get it to make a normal map?
ZMapper has a projection feature. (See my signature.)
Also, both PC and Mac users have an option that gives you more control. Append the low poly version of the model to the high poly one as a new SubTool. Divide it to have enough polys for the details of the original. Use Tool>SubTool>Project All to transfer the details. You can also use the ZProject and other sculpting brushes to clean up any problems with the projection.
Then simply go to level 1 and create your normal map.