Rails - Jul 2010 - NoMethodError in UsersController#show

So I am getting the error

NoMethodError in UsersController#show error
undefined method `feed'' for nil:NilClass

{"authenticity_token"=>"zalkdfsjfksjd;lfs;lfksdkf/2tPzo=",
"login"=>"session",
"password"=>"admin",
"commit"=>"Log in"}

Why is login being set to "session"?  Instead of the real login?

This is my form:

<fieldset>
    <div class="yui-g" >
        <% form_tag session_path do %>
            <p><label class="block"
for="login">Login</label>
            <%= text_field_tag ''login'' %></p>

            <p><label class="block"
for="password">Password</label>
            <%= password_field_tag ''password''
%></p>

            <!-- Comment this if you don''t want this functionality
-->
            <p><label for="remember_me">Remember
me:</label>
            <%= check_box_tag ''remember_me'' %></p>

            <p><%= submit_tag ''Log in'', :class =>
"btn", :id =>
"login_btn" %>    <%= link_to "Sign Up", new_user_path
%></p>
        <% end %>
    </div>
</fieldset>




Here are the relevant controllers and models:
Users_Controller:
def show
    #@user = User.find(params[:id])
    @user = User.find_by_login(params[:login])
    #@feed_items = @user.feed
    @feed_items = @user.feed
  end

Users Model:
def feed
    #Post.all(:conditions => ["user_id = ?", id])
    Post.from_users_subscribed_by(self)
end

Post Model (using SQLite3) :
named_scope :from_users_subscribed_by, lambda { |user|
subscribed_by(user) }

  private

    # Return an SQL condition for users followed by the given user.
    # We include the user''s own id as well.
    def self.subscribed_by(user)
      subscribed_ids = %(SELECT subscribed_id FROM subscriptions
WHERE subscriber_id = :user_id)
      { :conditions => ["user_id IN (#{subscribed_ids}) OR user_id
:user_id",
                        { :user_id => user }] }
    end
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Ok, so I found the issue.  The below resource in my routes is the issue.

map.profile_link ''/:login'', :controller =>
''users'', :action => ''show''

I used this to try and get Twitter-like urls so something like 
myapp.com/coolusername.

So what was happening anything after myapp.com/ was being set at the 
:login  so I am not sure how to get the Twitter-like urls plus have 
things like myapp.com/posts or myapp.com/session.

Anyone have any clues?
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