Use SVN. There's lack of "svn for people who have no idea how to use svn" tutorials, and when they're published, they tend to be single-paragraph.
I'm not sure git is a perfect solution for any project. Unless you intend to pull each other's modifications, the idea of a central "trunk" and custom "branches" is easy to explain to anybody in 5 minutes.
No, most of the time you want to pull from trunk, which everybody agrees on is the most current version, not feature A from Alice, and feature B from Bob and see where you end up.
I'm not sure git is a perfect solution for any project. Unless you intend to pull each other's modifications, the idea of a central "trunk" and custom "branches" is easy to explain to anybody in 5 minutes.