add more tabs

Hi

I need to add a few tabs next to the description tab on the product page and found this link on how to add more tabs but am unsure what php file I need to add the coding to

http://www.sean-barton.co.uk/2013/03/remove-woocommerce-20-reviews-tab/comment-page-2/#comment-17791

I need to add a reviews tab and a product attributes tab

Is that possible if so, how do I do it?

Sorry only been using wordpress for about 5 hours, not got the hang of it totally yet

Kind regards

Ian

http://wordpress.org/extend/plugins/woocommerce/