Digitalfire.com no longer has a login, it is an information site now.
If you are looking to download desktop Insight, it is now free and available in the Files panel of your Insight-live.com account (about $15 US).
For help on how to download it, search for help topic 423 in the Insight-live help.
Insight-live is the online successor to desktop Insight, it is much more capable.
If you think you have a current key for desktop Insight, please email us and we will give you an account at insight-live.com for the same period.