Problem with jstools tabs

Han anyone successfully used jstools tabs with vote_up_down? I created separate views to display top stories and upcoming stories. The views display fine on their own, but when I try to display the views under tabs, the storylinks, vote_up_down widgets and even the tabs themselves don't display at all (I just get a blank page). Is there a conflict with vote_up_down and tabs that anyone is aware of? Thanks.

Here is my code for displaying the views under tabs:

  $form = array();

  $view_args = array(0 => 1464);

  $form['voteupdown'] = array(
    '#type' => 'tabset',
  );
  $form['voteupdown']['tab1'] = array(
    '#type' => 'tabpage',
    '#title' => t('Top Stories'),
    '#content' => views_build_view('embed', views_get_view('top_stories'), $view_args, true, 10),
  );
  $form['voteupdown']['tab2'] = array(
    '#type' => 'tabpage',
    '#title' => t('Upcoming Stories'),
    '#content' => views_build_view('embed', views_get_view('upcoming_stories'), $view_args, true, 10),
  );
  
  print tabs_render($form);