Ipod not showing in iTunes or Finder.

The hard drive on my 5th G 30GB iPod died and I brought a new one and swapped it out. Now when it is not connected to my mac it displays message "connect to your computer. Use iTunes to restore." For about 5 seconds before turning itself off. When I plug it into my Mac, it shows a "Do not disconnect." message, but does not show up in iTunes or the Finder. It is showing up in System profiler though, but not in Disc Utility. I don't know where to go with this, is anybody able to help me please??!!

1. Quit and reopen iTunes.
2. Try again
3. If that does not work, shut down machine
4. Turn machine back on.
5. Try again.

Have you tried the 5Rs? Reset, retry, restart, reinstall and restore?

Apple - Support - iPod - iPod (5th generation) Troubleshooting