(There's no video for Reaktor v3 yet. Please contribute to MR and add a video now!)
Reator v3 is a "Modular Sound Design System"
using programming block modules patching methods
If you have no clue what that is then you need reading this:
Wizzo Reaktor v3 Guide/Tutorial
Reaktor307.sit (15.21 MiB / 15.94 MB)
/ compressed w/ Stuffit
Emulating this? It should run fine under: Basilisk II