Hi,
when I am remember correctly version 2 and 3 will run with 10.6 - but the installers of version 2 and 3 can not be used on 10.6. So, you would need to install the performer app on a newer machine, grab the “VST Connect Performer.app” and move it manually to the 10.6 machine … But no guarantee! No support!
See you,
Michael.