Categories list, one latest post and the remaining in a grid on category archives in Genesis

We’re trying the implement this solution but are having problems because we’ve renamed the blog slug using the below code. We tried copying home.php to archive-post.php but now the post offset isn’t working. Pagination does but it is showing all the posts, and isn’t removing the offset. Any ideas?
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function my_new_default_post_type() {

register_post_type( ‘post’, array(
‘labels’ => array(
‘name_admin_bar’ => _x( ‘Post’, ‘add new on admin bar’ ),
),
‘public’ => true,
‘_builtin’ => false,
‘_edit_link’ => ‘post.php?post=%d’,
‘capability_type’ => ‘post’,
‘map_meta_cap’ => true,
‘hierarchical’ => false,
‘has_archive’ => true,
‘rewrite’ => array( ‘slug’ => ‘magazine’, ‘feeds’ => true),
‘query_var’ => false,
‘supports’ => array( ‘title’, ‘editor’, ‘author’, ‘thumbnail’, ‘excerpt’, ‘trackbacks’, ‘custom-fields’, ‘comments’, ‘revisions’, ‘post-formats’ ),
) );
flush_rewrite_rules();

}