nerdao

Install the breadcrumb plugin and activate it.
Go to Appearence –> Mystique Configurations –> Advanced.
Put the code below in the User Functions box:

function show_breadcrumb_header() {
    if(function_exists('bcn_display'))
    {
      echo '<div class="breadcrumb"><b>You are here: </b>';
      bcn_display();
      echo '</div>';
    }
  }
add_action('mystique_before_primary', 'show_breadcrumb_header');

If you want to put the breadcrumb in the footer, use this code:

function show_breadcrumb_footer() {
    if(function_exists('bcn_display'))
    {
      echo '<div class="breadcrumb"><b>You are here: </b>';
      bcn_display();
      echo '</div>';
    }
  }
add_action('mystique_after_primary', 'show_breadcrumb_footer');

You can see this working in Blog do Nerd.