[Radiant] Asset Manager not working

[Matte Edens]

Long time listener, first time caller... heh.  Okay, hi.  I'm evaluating 
Radiant (mental branch) for an upcoming project and love it so far.  
I've installed the Asset Manager extension from Keith and I have 
acts_as_attachment installed (under lib/plugins not vendor/plugins).  No 
RMagick or Imagemagick though.  Tackling one of those next.

I see the Images tab.  It's showing up in the Extensions manager area 
but when I click the Images tab I get the following.

[begin error]
LoadError in Admin/assetController#index

Expected ./vendor/extensions/assets/app/models/asset.rb to define Asset

(active_support stuff removed)
#{RAILS_ROOT}/vendor/extensions/assets/app/controllers/admin/asset_controller.rb:11:in 
`index'
[end error]

Wha?  Very puzzled here.  Asset IS defined in the model.  My code has 
been svn updated and everything is current.  When I had 
acts_as_attachment installed under vendor/plugins, it acted the same 
way.  FYI.

thanx in advance for any thoughts, condolences, etc.  :)

matte - matte at ruckuswireless.com