Have one? You mean the Logo Editor? Ok fire it up and then just go to the Explorer and drag the .Zimage file from the Hijack site and drop it onto the editor, then stand back.
OK. setup: you need to have a working serial link connected to your player. Have you verified that yet? You can prove that it works if you start Hyperterminal and then apply power to your player. You should see the boot sequence of the player. Once you're sure it is working, then quit Hyperterminal and then proceed with the drag/drop operation as described above and it should work.
Have fun.
Tim