Template Override doesn't work

I follow the instructions here http://docs.woothemes.com/document/template-structure/

I have a folder call woocommerce in my theme folder, and I place taxonomy-product_cat.php & archive-product.php then add some custom html, but nothing happens. I tried deactivating an reactivating, I try clearing my cache. I searched google, but I cant figure out why it does not work. I don’t know what else to do.

Please anyone have any ideas?

http://ww.wp.xz.cn/plugins/woocommerce/