This is a plugin, not a stand alone, so you will need a host application such as the ones they mentioned on there site to run this AU Plugin. ie: Garage Band (3.0 or later recommended) , Sound Studio 3, Rax, Logic (7.2 or later), AU Lab, Audio Unit Hosting. Or one that suits you best. Then use the host program to run this and you should be good to go.
You need a host for this!
This is a plugin, not a stand alone, so you will need a host application such as the ones they mentioned on there site to run this AU Plugin. ie: Garage Band (3.0 or later recommended) , Sound Studio 3, Rax, Logic (7.2 or later), AU Lab, Audio Unit Hosting. Or one that suits you best. Then use the host program to run this and you should be good to go.