nemrda , go to the Systems menu, then select Firmware Version. What does it say in there?
Never "upgrade" your player. You won't gain anything for upgrading and you will most definitely brick your player doing so. Look up in the Dead Players section and you'll understand.
Regarding playlist, it does not support any type of playlists used on your computer. Depending on your firmware version, the older firmwares do not support file browsing, whilst some newer firmwares support file browsing.
These players usually play files in the order that they were copied into the player, not by alphabetical order.
Here are some file management programs that you can use with your player
http://www.mympxplayer.org/flashsync-176-mb-df344.html
http://www.mympxplayer.org/flashshuf...-mb-df343.html