Sorry but there are no tools (yet) to add or create programs to this player.
You can mod it, to change it's look, but you need to make a back up copy of the firmware first and keep it safe:-
http://www.mympxplayer.org/firmware-...s-vt10856.html
But don't hurry to play, learn more about your player first, before you start theming, so you don't have problems or brick it.
Plenty of information on this forum.