'Blkzr',
This applies to a list of select mainstream brands/manufacturers & bought between June 26, '09 & Jan, 31, '10. The retailer where the machine was bought should issue an eligibility coupon. If, the make is on the list, go to the retailer & ask for the coupon. @ that point you will, also, get instructions & know how to approach the redemption process (w/ Microsoft).
Regards,
Drew