Adamos: pages instead of posts

http://www.kubryk.net/wordpress

Hi. Could you tell me how to change the slider so that it points to pages instead of posts? What modifications to the code should be done?

<div class="flex-container">
              <div class="flexslider">
                <ul class="slides">
                <?php
                query_posts(array('category_name' => 'featured', 'posts_per_page' => 3));
                if(have_posts()) :
                    while(have_posts()) : the_post();
                ?>
                  <li>
                    <?php the_post_thumbnail(); ?>
                    <div class="caption_wrap">
                    <div class="flex-caption">
                    <div class="flex-caption-wordtitle">
                    <a href="<?php the_permalink() ?>"><?php the_title(); ?></a>
                    </div>
                    <p><?php echo get_slider_excerpt(); ?>
                    <a href="<?php the_permalink() ?>">...</a></p>
                    </div>
                    </div>
                  </li>
                <?php
                    endwhile;
                endif;
                wp_reset_query();
                ?>
                </ul>
              </div>
	</div>

I tried to change query_posts function parameters to those:

'post_type' => 'page',
  'post__in' => array(0,1,2)

But it doesn’t work. There is Error.