There has been a trend lately in the software download industry to try and up-sell customers with an extended download service. This is the scam. You pay an extra $5-10 dollars when you purchase and then you can have your serial numbers resent to you later if you have a hard disk crash or something. I've seen a number of e-mails praising how well this works to increase revenue. To me it just seems like robbery or taking advantage of people. If you purchase Memorize-It and lose your serial number, send us an e-mail. We keep records (like everyone else) and it is pretty simple to look up and send you the serial number.
As for the download, you can always download Memorize-It from right here: http://www.memorize-it.com, including older versions in case you can't afford the $10 for an upgrade.
Extended download, just say no.