You could try my site http://www.area450.co.uk - the hacks there work for the Encore DV450, the Sampo 520, Sampo 560, Sampo 620, Sampo 660, Afreey LD2060 and the Omni 3000. Not sure whether there`ll be any good for your player, but give them a whirl.
If you find they do work can you let me know here, or via e-mail from the home page - cheers, mate !