Thanks, Eric for checking into this so quickly. Glad it wasn't just my bumbling with code copy/paste.
I had occasion to speak with someone in tech at their store a year ago & they were very helpful. That's why I believe it's worth our time setting up a dedicated shop to sell their excellent range of fantasy/scifi/horror/sitcom graphic novels, comic books, collectibles & other merchandise.
I remember having a squizz at their csv feed back then & again, like Chinavasion's, being VERY impressed. Maybe things have changed though. I know they consider affiliates as an important & integral part of their successful business model online.
So see how you go... if I can help by liaising with the merchant, let me know.