I had to do a manual install because the wizard based one wouldn't work. However, I'd really like to load the bookshop demo data to get me started setting up an e-commerce site.
I've never actually done this before, but I'd assume you'd need to use ezpublish-my-sites/kernel/setup/packages/bookshop/sql/mysql/bookshop.sql or ezpublish-my-sites/kernel/setup/packages/bookshop/sql/postgresql/bookshop_postgresql.sql and create the appropiate site folders in settings/siteaccess.