If you have tried using the "Full Package" for the missing package error, please be sure you have a Firewall turned ON.
I had the OneCare Firewall off, and I would get the missing package error. Once I turned it on and retried, it made it past that point, but unfortunately I am stuck at the Driver errror.
So you could try turning ON the Windows Firewall as well and see if that counts as the "missing package".
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