I've got the AU version working.....it's a bit of a laugh.
I imported a midi file and solo'ed the drums.
Installed a soundfont through the DLSMusicDevice plugin and then placed the trig under it.
Starting it playing
Then you can just turn the knobs and hear all sorts of weird and wild things.
It doesn't work with quicktime sounds.
I guess I am using a midi track and the soundfont to play audio samples....so this use of supatrigga probably works in plugins like idrum and sampletank etc.