This doesn't work at all. You'll see more money client-side, but when you go to buy something, you'll see "you do not have enough money". Reason being - the SERVER tells you how much adena you just picked up not the client. The server tells you how much adena was on the floor, then when you pick it up, the server logs that you picked up that much money. All the client does is graphically display data the server sends it, you CAN NOT dupe adena like this. kthxbye.
I laugh at anyone that even attempts this "exploit" because there is never going to be a way to cheat items or adena on the server through tsearch or hex editors. -ONLY- on a totally fcked game such as diablo 2 would this method work.