The Office Pre-Launch Offer has two distinct periods:
Eligibility Period – from October 19, 2012 to April 30, 2013: You must purchase, install, and activate your Office 2010 or Office for Mac 2011 product. You may sign up at Office.com/offer [microsoft.com] to be notified by email when the products are ready for download.
Redemption Period – from the availability dates of the new Office to May 31, 2013: If you signed up, you will receive an email from Microsoft when the new Office is ready for download. You must redeem the offer at Office.com/offer within the redemption period.
I see what you were trying to do… But really, there is nothing there yet.
Any chance we can get this republished once the offer is actually active? I'm not signing up for more Microsoft spam, and will forget by the time it comes around!