Whilst talking to Martin K I was in a situation where it showed that he was able to send a file to me, but not the other way round. I was able to receive a file perfectly. This shouldn't ever be the case we always check that both local remote contact support file transfer, there's no reason why they would be different. I am shown as being able to send files to some other users, but seemingly only those on KDE Talk, not Facebook or GTalk. Needs some debugging.