I would think with the forum update it moved the thread or otherwise changed the URL structure, making that link 404. I'l see if I can find it and update the link in the Troubleshooting sticky.
In the meantime, you can watch this video which goes through the build process (including test-benching/breadboarding the system).
Relevant part starts at 13:35, though it would be good to watch the whole thing.http://www.youtube.com/watch?v=qMRvz_IYSgM
EDIT: Think I found it.http://www.tomshardware.com/forum/262730-31-breadboarding