Set the WordPress home to use the archive template.

functions.php

<?php
/**
 * Do not include the <?php tag... your functions.php should already have one.
 *
 * In response to Genesis support forums.
 * http://www.studiopress.com/forums/topic/minimum-pro-archive-portfolio-for-catgeory-archive-pages-and-home-page/
 */

add_action( 'pre_get_posts', 'custom_pre_get_posts' );
/**
 * Callback for WordPress 'pre_get_posts' action.
 * 
 * @param  object $wp_query The current WP_Query object.
 * @return void
 */
function custom_pre_get_posts( $wp_query ) {

    //  if admin, return
    if( is_admin() )
        return;

    //  if not home, return
    if( ! $wp_query->is_home() )
        return;

    //  if not within main WP_Query, return
    if( ! $wp_query->is_main_query() )
        return;

    //  tell WordPress we are in the archives... tee-hee
    $wp_query->is_home = false;
    $wp_query->is_archive = true;

}