I created a number of forms in the 'free' version. I upgraded to a silver account - are these forms automatically 'hippa compliant'?

No, it will not convert to hipaa automatically. You'll need to enable it from your account settings or follow our guide below.

Guide: https://www.jotform.com/help/500-how-to-upgrade-to-hipaa-compliance?

Let us know if you have any questions or if you need further assistance.