Answer to: Why won't my iPod turn on to the home screen?Connect your iPod to your computer.
Answer to: Sound comes when on, but blank screen?Your iBook has a mini VGA connector. You could get a mini VGA to VGA adapter any you could connect it to an external display. Try letting it boot and insert a disc. Then push the eject key. If it comes out your display is bad. Otherwise your logic board is bad like so many other iBook G3's (apple had a recall in 2005 but has since ended)
Answer to: How do I come out of a password lockout?Try connecting it to another mac via target disk mode and re-install OS X from the other mac onto you MacBook.