Dear Bob,
The 15 day demonstration version of HealthFrame is a full-featured release. All functionality is enabled and the only limitation is that after 15 days have passed, if you don't make a purchase, HealthFrame will cease to be accessible.
When you buy a license, you're given a license code. You simply need to enter that code in HealthFrame. Once you have entered that license code, you'll be able to continue using HealthFrame for as long as you want and all of the data you entered during your evaluation will be available to you.
For more information, please look at http://www.recordsforliving.com/HealthFrame/FAQ.aspx?ShowFAQ=DoIHaveToUninstallDemo
Thanks for your interest and please let us know if we can be of further assistance,
Support Team