I am trying to learn proportions in Zbrush with zsphere. So before i start to go into in depth anatomy sculpting, i want to have good proportions. But, i am not sure the workflow from zspheres to dynamesh. I tried to play with it, but seems i do something that doesn't work. After zpsheres process, it doesn't want to sculpt…
are you perhaps looking at the model in preview mode and trying to dynamesh it? That's the only thing I can imagine is going on where you can't do anything.
once you got your zsphere constructed, pan down to the adaptive skin, hit preview to check it, then hit make adaptive skin if your happy with the settings. this will create a new tool for you with the new polymesh generated from the zsphere. select it, and you should be good to go with dynamesh etc.