Dave, did you look at the UI for creating topics and pages, and managing images? It's in the Topics section you see on the group's main page (think I forgot to mention that). Nothing specific you need to do other than follow the admin links at the bottom of the various pages and have at it.
The code for images is mostly from the Musea example, though I wrote some stuff that parses the page as it's delivered and substitutes the real image tags for the pseudo tags page authors use. I'd be happy to bundle the whole module together if there's interest; I just assumed that it would need to be ported to v4x first.
