Thanks for the reply,
That is what I'm struggling with, when I enter my API Username and API Key is does not register the gold cart plugin? Which I'm sure is the reason why I do not have the full Plugin Features. I'm really not sure why I cannot register the plugin but I'm sure this would be what the problem is.
When I try to register the plugin I get a white line with a thin red line at the left hand-side of the white line with no writing to say why the registration failed. After this it still says I need to register my plugin.
I hope you have a solution as I still cannot use the gold cart plugin I have paid for!