From what I understand from other users, it works OK with phpBB3 and WordPress versions up to and including 2.3. To get it to work correctly with WordPress 2.5 (current version) you have to make the changes to WP-United files as described in this WP-United forum topic.bjartmar wrote:is the newest version of wp-united running good with no bugs?
I've done this, and have ended up with the "No input file specified" bug that a few others have found. But apparently it works fine for other users.
Note that nobody appears to have heard anything from the author of this mod since last December. So it's unclear if this mod has any future or not. A shame, because I very much would like to have this running on my production site.
There don't appear to be any viable alternatives out there either.