Various bits of PHP / HTML to customize this theme.

1. Add a add to cart button around more info button

See: http://themedy.com/forum/discussion/4096/adding-an-add-to-cart-button-next-to-the-more-info-button#latest

2. Output product categories to page with WooCommerce

See: http://docs.woothemes.com/document/woocommerce-shortcodes/#section-13 for this and various other shortcodes you can use with WooCommerce.