Thanks ozbeachbabe for the reply...heading out from Brisbane on Sat Dec 31st to Sydney on Qantas and then connecting onto JQ3 on a seperate PNR...Would have liked it to had all sectors on the one PNR but couldnt achieve this online...We are travelling Business Class so our pre selected seats should hold !!!!...And yes, we have already amended/updated our pre-existing ESTA form...Thanks for the reminder