Hi
As i replied on your Ticket, the News Show Pro GK4 "read more" link were not displaying the article because by disabling mainbody on frontpage, the component will stay invisible, so it will not be open in other page. You need to have enable on any menu on frontpage some link to Joomla Component Content.
This is Joomla!1.6 feature that we can't turn around.
As you can see, it's working well now.
For example, i use "Articles » Category Blog" link on main menu (Home > Blog Layout) , but you can place it elsewere.
You can even publish on some "invisible" menu, publish on some module position available on templateDetails.xml file but not available on frontend file.