Any one no what a tbfinluro j/o error on mtf file is iv email them and they don't want to say 
All I know is that the i/o bit is input/output. Pretty meaningless without knowing the context though. Even if you did give more details, I don't have the knowledge. I imagine the programmer should know though or at least be able to find out.
Do you mean they haven't replied yet or that they are refusing to tell you? If the former, well it is the weekend and I suppose everyone has a life.