Tabs GK5 not working on Quark eCommerce

Hey,
I am struggling with the GK5 Tabs module on the Quark eCommerce template. I want to show the tabs in the same style as on the standard Quark template.

I configured the module (and the tab modules to include) exactly the you mentioned in the configuration except that I need it on another module position (eg. bottom2). The GK5 Tabs module is placed on a page (menu link) that has "frontpage" set within the template parameters.

Is there anything I have forgotten to change or add?

Any help is welcome! THX!

Could you please provide me with a URL to your website and back-end access via PM (click the “Private Message” text underneath my avatar) so that I may analyze it? It is a lot easier for us to diagnose issues when we have a live site to examine.