My wife is in exactly the same situation (including timeframes) as the OP's mum ... but in Australia.
Sydney consulate advises that, prior to the introduction of the e-Passport, it would have been possible to obtain a new one simply by presenting the old one (which contains, as do all Thai passports, her id number).
Nowadays however, the requirement is to appear in person for biometrics and present the old passport along with 'valid' id card OR tabien baan. She hasn't yet established whether 'valid' means current but I presume it does.
I understand that we're in different parts of the world but it would seem likely the rules and requirements for e-passport application would be the same everywhere.
On another point, does anyone know whether the old style single sheet tabien baan (was it the forerunner to the blue book?) is still accepted? It is an original from amphoe.
Edited by Songhua, 2012-09-21 09:53:57.