Isnt Steve (Socialite) from Manchester? Perhaps he hasnt seen this thread and you can PM him. I have no idea where in Manchester he is, but just maybe he's somewhere close and can check it out for you.
I'm hoping that your bro is okay. I was MIA lotsa times too when I was in college overseas. Usually it was when I stayed with BFs or friends and I dont want my parents to find out. Maybe your bro was staying at some chick's place and wanted some privacy, hehehe.
K, seriously, I hope he's fine and you can locate him real soon.