Hi,
from what I understand - in order to solve this challenge you need to take a look at the code (at
http://trac.gwf3.gizmore.org/) - which was possible in the past (I still have the Trac favicon cached), but is not possible now.
Is the challenge still solvable now? The link to "All code" in the footer of every page on wechall also doesn't work.
Waybackmachine is also not much help this time.