sorry to hear about yer mum
no he'll need a thai passport, its easy to do go to the ministry of culture opposite central pinklao, well its a b it further down
that bit about the pictures is rubbish as the initial UK passport is 5 years in duration, and 9 times out of 10 you will use in conjunction with the Thai passport
as for the milk, yes you can take it on bagges up but you may have to taste it
at 2 years old you shouldnt need that much as the air hostesses will sort you out for a meal
well i know american airlines are cunts but they cant be that big a cunt can they?
if you want tio take hum better get his arse back and buy a thai passport, not expensive from what i remember