Would this be what I should do?
Bootloader installation from Windows
1. Make sure you are logged into your computer as Administrator, or a user with Administrator privileges and connect your player.
2. Download ipodpatcher.exe from
http://download.rockbox.org/bootloader/ipod/ipodpatcher/win32/ipodpatcher.exe and run it.
3. If all has gone well, you should see some information displayed about your ipod and a message asking you if you wish to install the Rockbox bootloader. Press i followed by ENTER, and ipodpatcher will now install the bootloader. After a short time you should see the message “[INFO] Bootloader installed successfully.†Press ENTER again to exit ipodpatcher.
4. Make sure that you have correctly extracted a build of Rockbox so that you have a /.rockbox, which contains all the files needed by Rockbox in the root of your player’s drive and that you have also installed the fonts package – see section 2.3.2 for more information.
5. Disconnect your player in the usual way. The bootloader is now installed.