sam36 , you'll need to check for your player's firmware version. The v3.5.xx series, and any version v9.0.43 and below should be fine and be able for theming. This is a list of all the themes uploaded by members
http://www.mympxplayer.org/themes-dc25.html
However, do ensure that you extract a backup of your existing firmware first, the guide is here
http://www.mympxplayer.org/how-to-ex...tool-vt66.html
And do not use any themed firmware to flash into your player, doing so would most likely brick your player. Always use your own extracted firmware (as above) and swap the images using the S1res tool. Saving it, then flashing it back into your player. The full guide to theming is here
http://www.mympxplayer.org/how-to-mo...ng-vt1719.html