Hey Camille .. thanks for using my thread -
Puffy - the keiki began to develop before the 1/22/07 posting of the thread and I didn't see root nubbins until 3/10/07 .. so it took about 2 months but the keiki had been developing a few months before 1/22/07 ..
under my indoor conditions - it could take up to or possibly longer than 3 months from the time the keiki begins to develop before you see root budding ..
So it's a matter of patience (if you can hold out as I did) to let nature take it course or you can do any of the number of things people suggested in that thread to stimulate root growth ..