Anyway our SonicWall TZ 190 install is done. I hope. It was a thrill to know that it shipped with a corrupt OS, and the firmware has to be installed immediately. My advice is to do this before you manually insert the settings, as it wipes them and you'll have to do it all over again. The firmware it ships with won't allow you to export the settings.
It was not a joy, but I hope it will be now that it's in place and I can begin tweaking.