Dude, I hate to break it to you, but January 2013 was more than 7 years ago... yes, we are so old.

They 404 for me too. I think Bricklink recently got taken over. It's a shame all the URLs died, because there's a huge amount of work by a dedicated fan community that's lost now.

The linked site still works, the specific links are just dead. If you type the four-digit set number into the search box, the correct sets come right up.