My wife took got her driving license in Spain. As a native English speaker, with poor Spanish at the time, she was delighted to find out that you can site the theory test in English. Sorry, in Espanglish. As is too often the case, even official documents are translated into English not by native English speakers. Long story short, many questions became nonsensical and she failed the theory several times, and in the end she improved her Spanish and passed the theory and later the practical.
Rob’s right, definitely go for getting your license back in Britain. No reason for it to be very illegal though. If you have friends or family in the UK, you can be resident there long enough to get your license and then emigrate again.