Product categories, Breadcrumb and Header section questions

Hi,

1.
Is it possible to show the main categories as pictures as default on the shop page instead of all products?

Please see this screenshot: http://cloud.refica.dk/3D0z381k0y06

I know I can use the “Woo – Product categories” for this, but how do I then turn off the product grid? Or is there a smarter way to do this?

Please see this screenshot: http://cloud.refica.dk/3P1L2R1U0e3T

2.
I feel that the breadcrumb does not work properly because it does not show the “shop” when I am on a product page.

Please see this screenshot: http://cloud.refica.dk/2n1O2N122O2k

The breadcrumb looks like this:
Forside -> Perler og smykkedele -> Værktøj -> Bidetang

And it should look like this:
Forside -> Shop -> Perler og smykkedele -> Værktøj -> Bidetang

3.
Will you completely remove the header section in the theme options and switch to the Header Builder?