Hi BD,
Have you had any contact on his behalf with the British Embassy in Manila? It seems to me that they should be doing something and if they are they should be keeping you, or at least whoever is listed as his next of kin informed about their progress. I'm really disgusted about this, I mean, what's the point of shelling out taxpayers money to maintain an embassy in the Philippines if the jobsworths there don't do (or appear not to do) anything when a British citizen is imprisoned there without due process of Philippine law.
Iain.