How does one change the rest of the images on the template? Same way?
Firebug is the easiest way to figure out what to change and where it is located, either in the code or the file itself.
The majority of the images from the demo are in the content, so you'll change them by editing the content - which you would need to do anyway to get a site ready.
If you need to change the background images, Firebug can tell you exactly where the files are, and what lines of the CSS they're called on.
Is Joomla any easier to configure?
All the WP releases are "converted" to WP from the Joomla ones; I would guess that WP is still easier to configure, just because it's an easier CMS. I'll be glad to help in any way I can.
(I also respond to the forum more often than the Joomla side usually, so if you need support, I'm more likely to be able to provide it quickly.)
I'm sorry, but this is a lot more work than I had imagined.
That's completely understandable. I'm still trying to find ways to improve the WordPress version of the framework to make it function more like what people expect from WP, the main problem is that Joomla as a CMS has very messy code, and I have to write custom alternatives to a lot of things that WordPress just doesn't have.
The WordPress developers still don't see WordPress as a full CMS, so even the ability to have different layouts per-page isn't a core function.
Feel free to let me know what you're having trouble with, and I'll do my best to explain the easiest way to make it happen.