!!I am adding a method to reset a users password and then send them their temporary password.
!!Right now, it generates and emails a password correctly, but I cannot get it to save the password in the user.
!!I used LoginEngine and here is my User model.

require 'digest/sha1'
class User < ActiveRecord::Base

  acts_as_blog

  # Virtual attribute for the unencrypted password
  attr_accessor :password
  file_column :image
  validates_presence_of     :login, :email, :first_name, :last_name
  validates_presence_of     :password,                   :if => :password_required?
  validates_presence_of     :password_confirmation,      :if => :password_required?
  validates_length_of       :password, :within => 5..40, :if => :password_required?
  validates_confirmation_of :password,                   :if => :password_required?
  validates_length_of       :login,    :within => 3..40
  validates_length_of       :email,    :within => 3..100
  validates_uniqueness_of   :login, :email
  validates_format_of       :email, :with =>  %r{^[a-zA-Z0-9@\.]*}i
  before_save :encrypt_password, :transform_resume
  searches_on :first_name, :last_name, :company_name, :email

  def transform_resume
    self.education_formatted = User.convert_to_html(self.education, 'textile')
    self.affiliations_formatted = User.convert_to_html(self.affiliations, 'textile')
    self.significant_formatted = User.convert_to_html(self.significant_transactions, 'textile')
    self.professional_formatted = User.convert_to_html(self.professional_experience, 'textile')
    self.achievements_formatted = User.convert_to_html(self.achievements, 'textile')
  end

  # Authenticates a user by their login name and unencrypted password.  Returns the user or nil.
  def self.authenticate(login, password)
    u = find_by_login(login) # need to get the salt
    u && u.authenticated?(password) ? u : nil
  end

  # Encrypts some data with the salt.
  def self.encrypt(password, salt)
    Digest::SHA1.hexdigest("--#{salt}--#{password}--")
  end

  # Encrypts the password with the user salt
  def encrypt(password)
    self.class.encrypt(password, salt)
  end

  def authenticated?(password)
    crypted_password == encrypt(password)
  end

def change_password(password)
    new_pass = encrypt(password)
    write_attribute("crypted_password", new_pass)
    new_pass
  end

  protected
  # before filter
  def encrypt_password
    return if password.blank?
    self.salt = Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--") if new_record?
    write_attribute("crypted_password", encrypt(password))
  end

  def password_required?
    crypted_password.blank? or not password.blank?
  end

end

!!Here is my controller code:

def send_password
    @error_text = "Your email address was not found in the system. Please register for an account."
    if params[:email].any?
      if @user = User.find(:first, :conditions => ["email = ?", params[:email]])
         @new_pass = @user.change_password(generate_password)
        Notifier.deliver_password_reminder(@user, @new_pass)
        flash[:notice] = "A new password has been sent to your email..."
        redirect_back(2)
      else
        flash[:error] = "Your email address was not found in the system. Please register for an account."
        redirect_back(1)
    end
  end
  end

!!I get this error:

NoMethodError (undefined method `change_password' for #<User:0x40871f54>):
    /usr/lib/ruby/gems/1.8/gems/activerecord-1.14.4/lib/active_record/base.rb:1792:in `method_missing'
    /app/controllers/account_controller.rb:129:in `send_password'

!!Anyone?