buy book feature not working "a connection could not be established at this time etc...." How do I fix this? I am running Mountain Lion with Aperture 3.3.2

I have the same problem as many of you on this forum,

Aperture will not allow me to buy a book. It says a connection could not be established at this time.

I have a 2011 17in MBP, running Mountain Lion, Apertaure 3.3.2 purcahsed from the App Store, a 100Mb network connection, based in Staffordshire UK. It acts the same over wifi or ethernet, e.g a connection could not be established at this time. It makes no difference if I am signed into the App store or not.

I have spent 5 days preparing my Wedding album images for a 30 page book with lots of adjustments, therefore, I am desperate to fix this and as I paid £55 for the software I want it to work.

Can anyone help?

Regards

Tim