diff --git a/README.rdoc b/README.rdoc
index 4fb0315..720c8c0 100644
--- a/README.rdoc
+++ b/README.rdoc
@@ -2,6 +2,8 @@
 
 This is beta version of aavkontakte - another authlogic vkontakte authorization gem. It provides vkontakte authorization to authlogic.
 This gem is tested with authlogic and authlogic-rpx on my project. Please report me about bugs.
+Vkontakte uses domain protection for url address of your site. But I noticed that:
+http://your-really-domain:3000/ after closing popup window is works too. You must add your domain in /etc/hosts
 
 == Install
 
@@ -11,7 +13,7 @@ gem install aavkontakte
 
 In environment.rb:
 
-  config.gem 'aavkontakte', :version => '>=0.1.0'
+  config.gem 'aavkontakte'
 
 * User model
 
@@ -23,18 +25,29 @@ Add following line:
 
 * Migrations
 
-Create migration:
+Create migration "script/generate migration add_vkontakte_id_to_user vk_id:string":
 
   class AddVkontakteIdToUser < ActiveRecord::Migration
     def self.up
       add_column :users, :vk_id, :string
+      # Wait a little time for some options for this.
+      # Now you are using only auto-registration, you must remove any database constraints for fields:
+      # Uncomment follow lines
+      # change_column :users, :crypted_password, :string, :null => true
+      # change_column :users, :password_salt, :string, :null => true
+      # change_column :users, :login, :string, :null => true
     end
 
     def self.down
-     remove_column :users, :vk_id
+      remove_column :users, :vk_id
+      # Uncomment follow lines
+      # change_column :users, :crypted_password, :string, :null => false
+      # change_column :users, :password_salt, :string, :null => false
+      # change_column :users, :login, :string, :null => false
     end
   end
 
+
 * Layout
 
 In the body section:
@@ -49,7 +62,9 @@ After first start your application, it's copying vkontakte.js to your javascript
 
 Put link somewhere, where you want:
 
-  <%= vkontakte_login_link "Login with vkontakte" %>
+  <%= vkontakte_login_link_to "Login with vkontakte" %>
+
+By default it uses action create of user_sessions controller. Parameters are identical link_to without block.
 
 * User session
 
diff --git a/lib/migrate/add_vkontakte_id_to_user.rb b/lib/migrate/add_vkontakte_id_to_user.rb
deleted file mode 100644
index 75602c1..0000000
--- a/lib/migrate/add_vkontakte_id_to_user.rb
+++ /dev/null
@@ -1,9 +0,0 @@
-class AddVkontakteIdToUser < ActiveRecord::Migration
-  def self.up
-    add_column :users, :vk_id, :string
-  end
-
-  def self.down
-   remove_column :users, :vk_id
-  end
-end
diff --git a/lib/vkontakte.js b/lib/vkontakte.js
index 6e36d10..25198f5 100644
--- a/lib/vkontakte.js
+++ b/lib/vkontakte.js
@@ -20,7 +20,7 @@ function vkLogin(options) {
     if(response.session) {
       /* User is logged in */
       // need ajax request? $.post(url, response, "script" );
-      post(options['url'], response, options['authenticity_token'], options['session_name'], options['session_key']);
+      post(options['url'], response, options['authenticity_token'], options['session_key'], options['session_id']);
       if (response.settings){ /* Selected user access settings */ }
     }
     else { /* User pressed the Cancel button */ }
@@ -28,7 +28,7 @@ function vkLogin(options) {
   return false;
 }
 
-function post(url, params, token, session_name, session_key) {
+function post(url, params, token, session_key, session_id) {
   var method = "post";
 
   var form = document.createElement("form");
@@ -43,8 +43,8 @@ function post(url, params, token, session_name, session_key) {
 
     var sessionField = document.createElement("input");
   sessionField.setAttribute("type", "hidden");
-  sessionField.setAttribute("name", session_name);
-  sessionField.setAttribute("value", session_key);
+  sessionField.setAttribute("name", session_key);
+  sessionField.setAttribute("value", session_id);
   form.appendChild(sessionField);
 
   // recursively adds nested inputs to form 
diff --git a/lib/vkontakte/helper.rb b/lib/vkontakte/helper.rb
index 28aaca1..842a1ff 100644
--- a/lib/vkontakte/helper.rb
+++ b/lib/vkontakte/helper.rb
@@ -4,9 +4,9 @@ def init_vkontakte
       vkontakte_div + vkontakte_init if vk_app_id
     end
 
-    def vkontakte_login_link(name, url = user_sessions_path, html_options = {})
+    def vkontakte_login_link_to(name, url = user_session_path, html_options = {})
       authenticity_token = protect_against_forgery? ? form_authenticity_token : ''
-      options = "{ url: '#{url}', authenticity_token: '#{authenticity_token}', session_name: '#{session_key_name}', session_key: '#{cookies[session_key_name]}' }"
+      options = "{ url: '#{url}', authenticity_token: '#{authenticity_token}', session_key: '#{request.session_options[:key]}', session_id: '#{request.session_options[:id]}' }"
       html_options.merge!(:onclick => "vkLogin(#{options});") if vk_app_id
       link_to name, "#", html_options
     end