The docs seem to indicate (if I am reading them correctly) that I should put customizations here:
/home/myuser/.cream

But I found cream-user.vim here:
/usr/share/vim/cream

Here's the reference. I assume maybe it is outdated.
http://cream.sourceforge.net/faq.html
Beginning with Cream version 0.29, all user customizations belong under the user's home directory. By default this is $HOME/.cream