The project began with the release of version 1.3 and we're now at 1.3.7 in just a little over 6 months so keeping the documentation equal to the changes becomes a challenge.

The basics of creating your ZC "shop" remain the same though.

install the distribution both on your server and PC.
come up with an idea of how you want your site to look like.
create a template to get that look.
add and activate that template to your "shop"
create the override directories matching the name of your template.
edit the stylesheet and other files to meet the goal of your envisioned site.

The more you get into the customizing process the easier it gets and, yes, the light bulb will go on.