Yah, beating the info out of someone who created the format.
Sorry to eidospsogos, but even the possibilities of the best programmers are limited to this, if he has a type of file that is not similar to any other graphic format available. He would as much have to figure out by trial an error as we do.
BTW Devanstator, about your guess about how the file is encoded. The info must be in the header, speaking logically, but can only be at positions 5-8 or 13-16. These got nothing to do with the filesize, so it's the only logical explanation. You got a chat or something where we can meet up, and discuss all the details without having create bandwith overflow on this board?