Here's my mp4 instructions manual but it's in italian (i think they traslated it from english to italian with something like google translator because more of words are written in a strange way so you could reverse..better than nothing ,) )
But in terms of answering your question about transferring, it's just a matter of connecting your player into your computer and copying the files into that drive directly. Think of it as a USB memory stick. You don't need any special software to transfer files onto your player (like iTunes and iPods do).