Just a quote note before work- I ran through the (28) individual Spawn_PNP Detection ***** logs and all of them were blank. Possible I missed the one with something in it, so I will look again after work.
As for lsusb:
BTW- I was looking at the Spawn files from the MD that I have my usb-to-serial adapter plugged into... not the core where I have my z-wave device. I do not have any Spawn PNP... files in my /var/log/pluto/ directory on the device where I currently have my tricklestar and my aeon labs z-wave usb device plugged in (the core).
Which computer (MD or Core) did you install the /usr/pluto/pnp/ZWave.sh script on? You'll need to have it on both for this to work properly.
I think the Spawn* files get automatically cleaned up after a day. It is possible that is why you're not seeing them on the core.
I'd really like to know if the script works on your MD, as that is one aspect I haven't tested yet. You definitely have the right USB/Serial adapter to test with.