Sorry, your device is not currently supported by emCORE, and will probably never be.
Porting emCORE to a new device is generally a lot of work and requires lots of experience with embedded system development.
The exact amount of work needed varies greatly and depends on the complexity of the device and similarities to devices that emCORE has already been ported to.
Your device uses a PortalPlayer CPU, which is completely different to the newer iPod generations, but is covered by iPodLinux reasonably well. Rockbox has its own bootloader for this device, so it doesn't need emCORE either. Given these facts, there doesn't seem to be much interest in an emCORE port to this device.