Are you doubting me? If you are, I will search for it but other members can vouch that I posted the picture.
Seriously, get a life! I already said that it would sound biased, but having kept myself for a short period of time, I just wanted to comment on that particular incident. I also said in that post that Indians have claimed dropped catches before but I just wanted to comment on that incident.
You really are naive. It is not that there was an agreement. It is that Ponting pushed so hard for every country to get the agreement and as soon as he got it, he was the one to give the umpire a signal to say that a catch which has been proved as hitting the ground was caught.
I cannot find it. However, I will take a picture from a youtube video (something you should not link to, here at planetcricket).
This seems pretty clear.