I pass all the tests except this one which is a red NO:
PHP setting register_globals is disabled:
phpBB will still run if this setting is enabled, but if possible, it is recommended that register_globals is disabled on your PHP install for security reasons.
So if I'm reading right, that setting is ENABLED for me, but it shouldn't be. Can I proceed with the install and then contact my webhost about changing this setting. (It sounds like a server-level setting that would be beyond me to change.)
I read the Doc and FAQS and searched this board but came up empty on this.