Loran,
Our development team has figured out the problem that accounted for both issues: (i) the error message that should have been displayed, letting you know that you did not have Java installed in your Vista computer; (ii) the fact that your import isn't working in Vista.
The issue is that OHS plug-ins require privileged access (as administrator) to be installed. Vista has created a multi-step privilege access process and we need to make sure that you follow these steps so that your installation works:
(1) In your Vista computer, locate your HealthFrame program icon (typically in your desktop).
(2) Right mouse click and select the "Run as adminstrator" menu item. (See image)
(3) A dialog box will come up asking you to grant permission to HealthFrame. (See image) Please click the 'Continue' button.
(4) Once HealthFrame starts, please go to the Options / More Options... menu item.
(5) Now click on the install button and find the OHSD file to install the OHS plug-in. It is really important that you use the install button as described above, this guarantees that the installation of the OHS plug-in happens using a copy of HealthFrame that is running with administrative privileges. If you double click on the OHSD file or click on a link, for instance, the installation won't work.
Once you've taken these steps, the import of your CSV file should work.
Please let us know if you have any additional questions and thank you for using HealthFrame,
Support Team