Here is an updated package that really should work out of the box:
No need to unpack textures first, we’ve done it. No need to adjust the Project Folder, it’s set to // by default (so the appleseed scene will be exported alongside the .blend file).
Just load the scene and hit F12. After a little while (the time it takes to export the geometry to disk) rendering should start. Feedback welcome!
We know of a number of bugs that we’ll fix as quickly as time and resources allow: