I only have one user account and I only backup the Documents and Settings folder for that user. Like you I have all the CDs for the other stuff and in some ways starting from scratch is probably better as it gets rid of all the accumulated rubbish and tidies the hard disk up at the same time.
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Do you know that we're all in line for succession to the throne? Really?
Well, if forty-eight million, two hundred thousand, seven hundred and one people died I'd be Queen.