You should post into the technomate non-linux section.
Whane you want to upload files like the channellist or keyfiles
Menu - USB - transfert Files, select them, push ok, = transferred
What do you mean with the Electronic progr guide ? The epg is " cached " on yr usb stick when you are on a channel. In order to have the epg functioning stable you need a usb stick/usb harddisk with at least 2 Gb of space.
Oh and do'nt forget to use the latest patched firmware !