Hi there;
After hundreds of requests, I decided to start searching for a volunteer to provide a CGSphere ZBrush template. Currently, we have templates for just about any CG app out there but we are still lacking one for ZBrush.
For those unaware, The Sphere Project is a free and fun website dedicated to the evolution of technical and creative 3D sphere design. The purpose is simple; to create the most captivating and visually appealing sphere from our provided scene using your 3D program and renderer of choice. It’s a community website created for digital artists of all kinds.
There are specific guidelines to follow when creating a template for users to use, so if anyone is interested, please post and I will explain what is required. You will, of course, be credited for your template.
Thanks and looking forward to any volunteers! 
Cheers,
-Richard