It was amazingly simple to deploy on WP 3.9.2:
and you're done! There's a youtube video which is a bit old now but it walks you through all this more than adequately. (see 'Integrate Vanilla Forums into Your WordPress Website'.)
Worked first time.
I had nearly given up after I could not get the official WP Vanilla plugin to connect SSO, but thank goodness that this alternative was a breeze.
And many thanks for sharing your cleverness!
Using a multisite, and was wondering why i couldn't activate the plugin.
It should be "network-activated" which is totally fine.
You must log in to submit a review. You can also log in or register using the form near the top of this page.