Hey, if you can modify it and add more code, that would be great! Check if you can add more code because as far as I know and read from other forums, it doesn't seem possible......(??) But hey, I don't know anything about programming. If you do, then great.
Have a look here:
http://www.s1mp3.de/ - it might be helpful.
To answer your question about the backlit, have a look at our
Knowledge Base -
How to: Set sleep and power off settings. This shows you how to set it so it's on all the time. Just reverse it and put a setting of "15" or something to make it turn off after 15 seconds of inactivity.
Hope that helps.