How to Customize the Breadcrumbs

add_filter ( 'genesis_home_crumb', 'child_amend_home_breadcrumb_link' ); // Genesis >= 1.5
add_filter ( 'genesis_breadcrumb_homelink', 'child_amend_home_breadcrumb_link' ); // Genesis =< 1.4.1
/**
 * Amend Home breadcrumb link.
 *
 * @author Gary Jones
 *
 * @param string $crumb HTML markup for Home breadcrumb
 * @return string HTML markup
 */
function child_amend_home_breadcrumb_link( $crumb ) {
    return preg_replace('/href="[^"]*"/', 'href="http://example.com/home"', $crumb);
}

Below is the code that you can use to reposition the Breadcrumbs:

/** Reposition the breadcrumbs */
remove_action( 'genesis_before_loop', 'genesis_do_breadcrumbs' );
add_action( 'genesis_after_header', 'genesis_do_breadcrumbs' );

Below is the code that you can use to modify the Breadcrumbs display:

add_filter( 'genesis_breadcrumb_args', 'child_breadcrumb_args' );
/**
 * Amend breadcrumb arguments.
 *
 * @author Gary Jones
 *
 * @param array $args Default breadcrumb arguments
 * @return array Amended breadcrumb arguments
 */
function child_breadcrumb_args( $args ) {
    $args['home']                    = 'Home';
    $args['sep']                     = ' / ';
    $args['list_sep']                = ', '; // Genesis 1.5 and later
    $args['prefix']                  = '<div class="breadcrumb">';
    $args['suffix']                  = '</div>';
    $args['heirarchial_attachments'] = true; // Genesis 1.5 and later
    $args['heirarchial_categories']  = true; // Genesis 1.5 and later
    $args['display']                 = true;
    $args['labels']['prefix']        = 'You are here: ';
    $args['labels']['author']        = 'Archives for ';
    $args['labels']['category']      = 'Archives for '; // Genesis 1.6 and later
    $args['labels']['tag']           = 'Archives for ';
    $args['labels']['date']          = 'Archives for ';
    $args['labels']['search']        = 'Search for ';
    $args['labels']['tax']           = 'Archives for ';
    $args['labels']['post_type']     = 'Archives for ';
    $args['labels']['404']           = 'Not found: '; // Genesis 1.5 and later
    return $args;
}