Depends upon the date that you are doing this in BKK. With the move to the new airport, the lounge situation at BKK is in a shambles and only BA F and J pax have lounge access, due to a shortage of lounge space until the construction is completed (sometime in 2007, probably July based on how it is proceeding, but I haven't kept track of it). So the normal BA Gold open lounge access if not provided at BKK for a few months; if your travel falls into this period, then no lounge access at BKK based on BA Gold status.