Thanks for posting. I've replied to the email you sent earlier today.
The code you were using was valid for the December issue of the magazine - but only remained active for a limited period. A new code is included in each issue of the magazine, so that we can monitor how many readers are installing the software from each edition.
I've emailed the current, valid code to you directly. Do let me know if you encounter any difficulties when using the new code.
Apologies for the error on the Cover Disc FAQ page - it should state six-character code. I've amended this now.