I have just started setting up woocommerce with my Atahualpa themed site.
I found the threads that talked about the sidebar and footer display issues and solutions. That helped. Yay!

I still have a problem where on my store page - the header/header image are disappeared. I searched the forums, and google, and didn't find a solution so far.

my website store (no products yet): http://unearthyourworth.com/shop
the header appears on all other pages (http://unearthyourworth.com)

I also need to figure out how to get rid of the "Home / Shop" page selection option at the top of the Shop frame.

Thanks.

The problem is that Woocommerce is using an non-unique ID in it's elements and CSS. The ID is 'logoarea' and that duplicates something the theme has been using since it was first created. Their CSS is being applied to the themes logoarea and teh logoarea is vanishing.

You should report this to Woo, but menawhile you could try adding this to the CSS Inserts

div#container td#header table#logoarea td.logo-area {width: 50% !important}