The quickest and easiest way to get Winclone 6 is to download it directly from http://twocanoes.com/winclone. Once you install the app and launch it for the first time, you'll be presented with an option to purchase either Basic, Standard, or Pro:
Enter the license key by clicking "Already have a license?" (see above) or by going to Preferences in Winclone 6 (Go to Winclone menu then select Preferences...).
Select Activate License and enter in any email address and the license key:
The license key will be verified online and you should be ready to start using Winclone.