If Online Upgrade failed due to a firewall issue, you can try Website Upgrade instead. Just like Online Upgrade, you will need to enter your payment code and email address.
Pressing Next should automatically open the site in your internet browser. However, if that fails for some reason, simply click the Open Upgrade Site button:

The site that is opened should take your payment code and email address and use them to open a page on Cogniview's website that contains your upgrade code. However, this action may fail in certain browsers and require you to press a button to go to the second page.

After this stage you should see a page on Cogniview's website, containing instructions on how to install the upgraded versions. Simply follow those instructions - the license itself was already upgraded - and you will be able to use your upgraded application.