Halion symphonic orchestra trial version


I am interested in trying the Halion Symphonic Orchestra trial version in order to see if I should buy it.
I have downloaded it from their website and followed the installation instructions but I do not manage to get it running. I now have a folder including a file called Instrument Set HSO.pkg (which I installed), a Read Me file and a folder named additional content with VST sounds and some other files (eLicenser, Symphonic orchestra.cfg etc.). How am I supposed to proceed?