i registered a couple years ago when i was gpu mining..i have since upgraded to several types of miners. I finally was able to withdraw and i dont have  any idea what wallet the btc went to. Maybe an old wallet, an online wallet, an address on an exchange? HOW CAN I FIND OUT?? I have so many accounts with so many different wallets i do not remember what address i used on sign up and there is no option to change it? After as long as this pool has been around why is it still so medieval?