Why my giveawayoftheday.com license for v. 1.0 isn’t valid for other versions?
If you read this page it means that you have a free license key which were given away to you during a giveawayoftheday.com offer. This kind of license keys is valid only for Zentimo 1.0 final and is not valid for all other versions of the program. If you wish to upgrade to any future version consider purchasing subscription for upgrades.
Also you can download v. 1.0 here