Displaying errors using form_remote_tag?

My setup looks like this:

#list.rhtml <h2 class="title"><%= @title %></h2> <div id="project_list"> <%= render(:partial => "project", :collection => @projects) %> </div> <% content_for(:sidebar) do %> <%= render :partial => 'sidebar' %> <% end %>

#_sidebar.html <p>Create a new project</p> <%= form_remote_tag :url => { :action => 'create' }, :html => {:id => 'new-project-form'} %> <%= render :partial => 'form' %> <%= submit_tag 'Create project' %> </form>

My _form partial is pretty standard: <%= error_messages_for 'project' %> followed by form fields. The create method for the controller (called project_controller) can be seen here: http://pastie.caboo.se/34584

I know that validations are working correctly but I don't know how I can get them to appear within the _sidebar partial. Can someone point me in the right direction?