I purchased a $ 0 the premium edition and then try to download but i couldnt, so i wrote email to dataviz and this was the answer:
"Your download count has expired for the free upgrade of Documents To Go Premium Edition v. 1. No purchase was made. To be able to redownload the product, you will need to purchase the Download Insurance Plan for $4.99 that will provide you with 10 additional downloads for a 12-month period. Just click on the following link:
http://www.dataviz.com/purchase/
After purchasing, you may need to log out and log in again to complete the transaction.
I hope this information is helpful to you and please let me know if I can be of further assistance."
So i did it and purchased the insurance plan, then they sent me an email with the download link and it works, i downloaded without problems. The premium edition its working fine, but i had to delete the docstogo alx file from the OS carpet because it tried to degraded docs to go to the standard version.
This its no the end of the story, minutes ago i received other mail from Dataviz (other person sent it) and said:
"The current pages on our site to purchase the Premium Edition are for testing purposes only. That's why the price of the product is $0. Any orders for the Premium Edition will be deactivated prior to the release of the product.
We apologize for any inconvenience, but unfortunately, some versions of the software were made public that contain links that were set up for testing purposes only. Once the Premium Edition is available, these links will be corrected."
Weird, i dont know what will they plan to do with the people who downloaded the premium edition or in my case people who paid the insurance plan. Best regards to all.