What a "transfer" is for you?.
Well for purposes of trading a transfer is done when the recipient sees the bitcoins in their balance, I thought that was obvious.
Use blockexplorer.com to check the destination address to verify the transfer has begun.
You should be able to see that the transfer has been initiated immediately, from either the buyer or seller perspective. It will still be "unconfirmed" though. Unless you have reason to believe that the sender is a computer whiz trying to con you, that stage is good enough. The transfer will be "confirmed" within 1-3 hours. At that point, nothing in the world could undo it.
Thanks alot for that tip, it will speed up my future trades ALOT !
P.S.
I just waited two damn minutes for the reply window to open !
This forum is damn sluggish today ! And time is money !