Our ActivInspire software can be downloaded here. If the school uses the Promethean interactive Whiteboards, you will be able to upgrade to the professional version for free using a board hardware serial number. The limited free personal edition of the software can be used without a serial number and is sufficient to open *Flipchart files. Please note that Mac OS X 10.10 (Yosemite) is not yet supported for ActivInspire though.
Please don’t hesitate to call our Tech Support during office hours if you need someone to talk you through the upgrade process. I have created a case reference number to quote that will have your details: 00460206