My guess is that you can't get onto the site at all without a code (anyone care to confirm? Along with a few screenshots for us code-less losers? )
You need a code to login and once you have used the code you can no longer log back in again with the same code.
Once in it's just a store page with the Raspberry Pi and some other things like a memory card, usb cable etc.
Thanks Kallo. Are those generic, blank SD cards, or pre-loaded SD cards? And do they have the 300% markup that Farnell's SD cards have?