[OLPC library] where are the existing images on flossmanuals.net

[S Page]

Much as I love wikis, it seems chapters like Launching Activities and
Exiting Activities with only minor changes might be easier to update
on flossmanuals.net.

However, I can't seem to find their images.  For example,
http://booki.flossmanuals.net/sugar/_draft/_v/1.0/launching-activities/
has broken icons for images.  It's trying to load from, e.g.
http://old.flossmanuals.net/floss/publish/Sugar/rsrc/Sugar/600px_Startup.png
and getting nothing.
Did people who recently revised chapters on flossmanuals.net upload
brand new images for everything?

Also, does anyone know where the source images are?  Presumably
somewhere there's an original before someone resized the 600px
versions.

I don't "grok" how flossmanuals.net works, so thanks for any
explanation or pointers
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=S Page