Easy Accordion Slider Widget

[Contours]

You add the Placeholder to your page.
You add your images in their own smaller pages.
You link their filenames in the Page's code.

I'm feeling pretty dense about now.

I have my website prototype open in one Xara tab ... and I have Xara Accordian.web in another tab. Other than seeing the images, I can't follow how to merge them.

Where should the Placeholder be?
How big should it be?
What determines the widget's position on the published site?
Does the Xara Accordian.web just remain as a separate file that gets bundled when the site is published?

Regarding the photos in the pages of Xara Accordian.web, is that where my photos belong? Or do I add them as individual pages of my site and reference them from Xara Accordian.web?

I'm sure this will all make perfect sense once I've done it. But at the moment, I feel like I'm in a house of mirrors where I see possible methods in every direction (... as opposed to using the Nivo slider, for example ... where you drag it onto a page and every element is right there to be inspected or changed).