Rails - Nov 2006 - Rails newbie - can anyone please help with many to many NoMethodError

Please can someone help with the following problem -

I''m using LoginEngine and have a Users table linked many to many to a
Plants table. The joining table is plants_users with plant_id and user_id (there
are extra fields, so I''m avoiding has_and_belongs_to_many - plus it
didn''t work :().

::user.rb starts:-
class User < ActiveRecord::Base
  has_many :Plants, :through => :plants_users
...

::plant.rb is:-
class Plant < ActiveRecord::Base
 has_many :Users, :through => :plants_users
end

::plant_user.rb is:
class PlantUser < ActiveRecord::Base
 belongs_to :user
 belongs_to :plant
end

::plant_controller.rb is
class PlantController < ApplicationController
 before_filter :login_required
 scaffold :plant

 def list
  @plants = @session[''user''].plants
 end
end

So far so good (I think), but when I access this (using instantrails), I get 
NoMethodError in PlantController#list 
undefined method `plants'' for #<User:0x3969fa0>So - apparently
User has no plants method - but why not - surely thats whats rails
does?!I''ve tried reading loads of tutorials, changing this code umpteen
times, using has_and_belongs_to_many and can''t seem to get
anywhere.Please help    Cheers        Andy Stratton
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