Thank you very much, it appears I mis-read the importer instructions and moved the 3 files into the current directory, not the old one. If I mis-understood that readme, others might too - you might want the read me to say more explicitly that these go in the pre-7 directory to help redirect those visitors to these new forums.
Although that instruction confuses me a bit - my intention when I upgrade is to put these new forums *in place of* the existing forums. I wouldn't leave the old files or directories online ...? So I'm not sure how that would work.
In any case, my test forum is now actively working, and I have set all 300+ editors to the task of testing it out. I'll post separate threads as they find issues.
