[Radiant] Extensions problem

[Joseph Method]

This isn't the easiest way to start out with extensions, but I am
trying to integrate Instiki into Radiant. There will obviously be lots
of issues with this, but I'm experimenting to see how much refactoring
of the actual Instiki code will be required. So the first steps I've
taken: edited the Instiki migrations so that all redundant tables are
removed or renamed (pages becomes wiki_pages, etc.). Then I've pointed
my instiki_extension.rb to map /admin/instiki/create_wiki to
:controller=> 'wiki'.  I don't expect it to work when it reaches
index.rhtml, but it stops when it reaches password_check, a method
belonging to the subclassed parent ApplicationController. So in the
original Instiki code, the Rails magic is able to access the parent
class. Is this a problem in the extensions implementation?

-- 
-J. Method