0017 is a connectivity error. How are you downloading? What web browser, what operating system?
This post for OneCare general install problems applies to the restore tool, too:
http://social.microsoft.com/forums/en-US/onecareinstallandactivate/thread/ba26b781-da18-4ce4-be8c-22647bd5d8fc/
you can also contact support if needed -
How to reach support (FAQ) - http://social.microsoft.com/Forums/en-US/onecareinstallandactivate/thread/30400b52-7f26-4ba0-bc18-17e305329d90
-steve