Movie Magic Screenwriter on Windows 64 bit OS

I'd like to know how well that screenwriter works on 64 bit system. I've got Windows 8 64 bit, currently. The first time I checked MMS out, the install program didn't work properly, it got stalled and then eventually, it worked and set the program up as normal, but then I experienced a few crashes. I went to the developer's website and somebody had already had the same problems as me and asked what the problem was. They said a special license program for 64 bit systems had to be installed beforehand for the program to work. I installed it and was able to properly set up MMS, but couldn't run it because the time I'd spent trying the program out had expired before I could try it again.

Who here's got MMS on a 64 bit version of Windows? Do the new drivers installed by the License program get rid of the glitches or bugs as it's said to?