We do have a knowledge base article showing you how to download and install ActivInspire, to find the guide please go to http://www.PrometheanKB.com and search for article 10416.
This will download you the personal edition you will need to enter your license key to upgrade to the professional version.
If you do not have a license key and have no Promethean hardware you will only be entitled to the personal edition, If you have Promethean hardware and have no license key you you can generate a license key using the hardware. To find instructions on how to do this please go to http://www.PrometheanKB.com and search for article 10937.
If you need any further assistance please don’t hesitate to contact us.