acts_as_taggable_on_steroids form

Hi, i need help with a way to add tags to titles. i can not enter any
values to tags and tagging tables this way.

title_new.rhtml

<% form_tag :action=>'title_create' do %>
<p><lable for ="title_name">Name</lable>:<%= text_field 'title', 'name'
%></p>
<p>Tags (seperate with comma ','): <%= text_field
'title','tag_list'%></p>
<%= submit_tag 'Create' %>
<% end %>

def title_new
    @title = Title.new
end

def title_create
    @title = Title.new(params[:title])
    @title.tag_list
    @title.save
end

any help will be appreciated.
thanks