The thread is now a sticky in the General Discussions area.
As new breedable trait values become available, the page gets stale. To bring it up to date, I need someone to request missing trait values. Newer values can usually be seen in your Cattery or Pedigree; there's a posting in the thread which describes one way to get the image URLs the page needs.
Often, newer trait values are only available for specific combinations. Non-working combinations either show a broken image icon, or simply don't show up on the page (depending upon which browser you're using and which options you have set in it). When requesting an update, I'll need a known-working combination to ensure I have it correct.
I'm hosting the page of my personal tad-carlucci.com domain. The old page should still be available and I try to remember to update it; but you should update your bookmarks to use the new URL:
http://tad-carlucci.com/Build-a-Cat/