I have setup a site to use flux / FLUIDCONTENT for templates and have it working using the tutorial here: http://thomas.deuling.org/2011/06/create-base-html-fluid-templates-for-
I am afraid, you mix things up a bit.
flux, fluidcontent and (especially important for you) fluidpages play together to extend the default capabilities of creating fluid templates for TYPO3.
To summarize: You have read a tutorial concerning basic fluid page templating, but not fluidpages templating. To get you started quickly, there are some examples and documentation resources available:
fluidcontent_bootstrap and fluidpages_bootstrapWhen you are through those resources, you know how to register a provider extension, so that you can select it in the page properties in the backend.
Your template might look something like this (it's actually taken from the aforementioned speciality extension):
{namespace v=Tx_Vhs_ViewHelpers}
{namespace flux=FluidTYPO3\Flux\ViewHelpers}
Most flux templates (regardless wether fluidpages or fluidcontent) are split up into (at least) 3 f:section fluid sections:
The field items are usable by accessing them via their name attribute as getter. To illustrate this, you could access {settings.carousel.caption} from inside the page template above.