Yep. QasarBeach is 64bit - so it will won't run on 32bit platforms - one issue solved :)
Answers:
Yep I know how the Fairlight works, but Series II and III. QasarBeach does not operate in the exact same way as Fairlight have loads of custom hardware. The key difference is the Fairlight actually change speed to change the pitch. QasarBeach takes the modern approach and has a static speed with the pitch being interpolated - if you dont understand - don't worry.
The sampling function allows you to sample in incoming sound source - it is not currently operational in QasarBeach. TBH you can simply use a simple free sound editor to do this and just export to uncompressed .wav or ogg or aif. QasarBeach will load all of them.
Series III library is only available with a real Fairlight.