hi antique666
That's plenty of info, thanks.
To upload your firmware go to this page:-
http://www.mympxplayer.org/dload.php (you will need to be logged in)
Then click on the drop down "Select a category", scroll down to "uploads by members" and press enter, then at the top of the screen you will see an "Upload" button,
then just click on it to go to the upload screen, and please remember to include a photo of your player.