I was going to buy from there but I heard that they also advertise fakes as OEM, they are actually from Hong Kong too. It's really hard to trust someone these days.
To be honest I bought my cover from ebay to the same seller (I've seen your old thread) as you did because he had a very good feedback. The cover really look liked the original and you can't tell if it's fake but in the end I still figured it out by comparing it to my original one. You won't really notice but one of them is the screws from the back slider, they used a cross shaped screws than what the original used. And also like I said there is this hole that doesn't make the screws drill deeper. It's really a waste of $40, I thought this price would be enough to buy an OEM, but I was wrong.
How did you know that the cover that you bought from cnn was OEM? Is there any differences? And what about the memory card door? Do they come with the extra parts like the one from ebay? Anyway, if I buy from cnn and it's real OEM then I will get a good price. I was actually planning to buy from wwwl8shop.com and all parts that I need would probably be more than $100.
By the way check this out http://cnn.cn/shop/nokia-full-housing-blackblack-p-1396.html when you got your cover did it come with the extra parts inside? (two gold points, battery connector, camera flash).