Rob points out that some of the slides from the forum post have gotten lost in the wash (replaced by red squares, suspiciously like half of a pair of socks).
Here are the missing images from Michelle Ritchie. Michelle has done a great job of mixing the permaculture design with a themed educational/interaction design. The intention is that this can form a model for the working groups in the others to work from.
Computing for Sustainability 
eWreckers
March 30, 2008
Looks fantastic. Great designing.