While I don't dispute that each and every answer in the above posted solution is required for the Achievement (that's the problem with broken Achievements), on the whole, the above one I posted, which came from Romanius, is VERIFIED CORRECT. It is not a guess, it is not a possibility, it works period.
Anyone following this thread, while I cannot dispute Daegon's solution works, I cannot verify it does; I can 100% verify the other one does. If I had to guess, I would assume you simply did not follow the exact steps above, instead changing some of the answers based on your judgement....read the initial thread, I did the same thing as it made no sense as I was clearly reinforcing her opinions....did not work (again, broken Achievement)....did it step for step....works. When multiple people attest to something, the best YOU should say is, "didn't work for me"; then allow reasonable people to come to their own conclusion (that conclusion would be you didn't follow the steps exactly).