Yes the pokeys device is detected by the plugin, I previously had another connected and it is the list as undetected but the setup is for the one that is connected. I dont see a way to remove the previous one from the list but likely I could edit the xml to remove it.
I only either have Mach or Pokeys software open and not both.
I will install Mach to a different location so that I can eliminate issues that may have been caused with my testing of Brians Alpha plugin, will let you know if that helps.
Hood