You're welcome. I wish my 3D program did ZSpheres.
Ah I've played around with a couple of 3d programs however I find Zbrush both fascinating and frustrating...
When I tried ZBrush I couldn't figure out the interface or how to do anything.
I'd urge you to try again I opened it about 4 years ago not a clue etc then a few months back, I tried it's latest incarnation and you tube- blown away... it's like alien technology the interface is still different from the mainstream gui styles, but it's easily do-able - learnable.