Have you tried MSM tablets? My mum swears by them and they have helped me when I've been suffering with my joints, but then I think yours are way more fucked up than me. Might be worth a shot, even if they only take the edge off a little it's better than a poke in the eye, as they say in the UK. You should be able to get them in a health food store.

EDIT: Also, thanks for the birthday wishes. Should have been the first thing to say but got carried away with the MSM.