I have not had time to carefully follow the directions in your referenced link. It appears to be a great resource.

I do have a four wire hook up (unfortuantely) and pulling new cable through is not an immedate option.

But one thing I do observe is that that each outlet appears to be served by a seperate 4-wire. I do not think they are daisy-chained. It appears that the old POTS/dsl line used the red and green wires, and the second line (now the dry loop) used black and yellow.