[Rails] Authlogic + Rails3 - undefined method `Login' for nil:NilClass

Im new to Rails, and decided to start of with Rails3. After a lot of
searching ive managed to get a little bit of Authlogic working. I'm able
to register a user, login & logout.

Now, I would like to add more features, get more of authlogic working.
I'm using Railscast EP 160 as my reference.

Portions of the code found on the tutorial throw errors: Eg:

<!-- layouts/_topbar.erb -->
<%= link_to "Login", login_path %>

and I get the following error message:

undefined local variable or method `login_path' for
#<#<Class:0x0000000311e8f8>:0x0000000310af38>

To overcome this, ive just used a string. i.e. <%= link_to "Login",
"/UserSessions/new" %>

Now it seems like i've reached an impasse. When i try to output the
current user with:

<%= @user.Login %>

I get an error that im unable to circumvent. Can you please help me?
Thanks :) Please find below the error message, and some of the code.

undefined method `Login' for nil:NilClass

Full Trace Reads [truncated]

activesupport (3.0.0) lib/active_support/whiny_nil.rb:48:in
`method_missing'
app/views/layouts/_topbar.erb:16:in
`_app_views_layouts__topbar_erb__4536428193941102933_40950340__3781575178692065315'
actionpack (3.0.0) lib/action_view/template.rb:135:in `block in render'
activesupport (3.0.0) lib/active_support/notifications.rb:54:in
`instrument'
actionpack (3.0.0) lib/action_view/template.rb:127:in `render'
actionpack (3.0.0) lib/action_view/render/partials.rb:294:in
`render_partial'
actionpack (3.0.0) lib/action_view/render/partials.rb:223:in `block in
render'
activesupport (3.0.0) lib/active_support/notifications.rb:52:in `block
in instrument'
activesupport (3.0.0)
lib/active_support/notifications/instrumenter.rb:21:in `instrument'

Request Parameters:None

My gemfile reads:

gem "authlogic", :git => "git://github.com/odorcicd/authlogic.git",
:branch => "rails3"

config/routes.rb:

resources :users
resources :user_sessions
resources :ibe
match ':controller(/:action(/:id(.:format)))'

controllers/application_controller.rb: [the part that gets the current
user.. also taken from online examples]

def current_user_session
return @current_user_session if defined?(@current_user_session)
@current_user_session = UserSession.find
end

def current_user
return @current_user if defined?(@current_user)
@current_user = current_user_session && current_user_session.record
end

models/user_session.rb:

class UserSession < Authlogic::Session::Base
include ActiveModel::Conversion
def persisted?
false
end
def to_key
new_record? ? nil : [ self.send(self.class.primary_key) ]
end
end

models/user.rb:

class User < ActiveRecord::Base
acts_as_authentic
end

controllers/users_controller.rb:

class UsersController < ApplicationController
before_filter :require_no_user, :only => [:new, :create]
before_filter :require_user, :only => [:show, :edit, :update]

def new
@user = User.new
end

def create
@user = User.new(params[:user])
if @user.save
flash[:notice] = "Account registered!"
redirect_back_or_default account_url
else
render :action => :new
end
end

def show
@user = @current_user

end

def edit
@user = @current_user

end

def update
@user = @current_user # makes our views "cleaner" and more
consistent
if @user.update_attributes(params[:user])
flash[:notice] = "Account updated!"
redirect_to account_url
else
render :action => :edit

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