isocadia@
i don't, the cube i used in the example was uv mapped in blender and made in blender, now you said you saved it as a zbrush document, i'm sorry to tell you thats not how you save, i made the same mistake early on, you need to hit the 'save as' button and it'll save your model as a .ZTL (ztool) then you open it and there it is. did you save the uv map in blender by going into the 'scripts' drop down? if not thats why, also are you exporting it as a .obj, as when you export it as one it'll have two options that are called UV and texture make sure they're selected before you export, then when you import it it'll have a uv map applied to it, also just try polypainting with colour for now, wouldn't use projection master until you have the basics working. Also you should download the UV master plugin, its very useful and automatically generates, more often than not, a decent UV map within zbrush however manual UV mapping is always better, and sort of required for non-organic objects. also if you import a model into zbrush it is not neccessary to turn it into a polymesh3D, its already defined as sculptable, that may be your problem yours may be deleting you UV data when you convert it, hope one of these helps
