Well I need to remind you this IS considered beta!

The locked topic issue is because SP does it the other way around. Zero means unlocked. I have corrected that in the latest cut of the importer. Odd that this hadn't been reported by anyone previously who all said that the data came across fine! Oh well.

I have also changed the latest cut to remove the option of importing users. If they already exist in the target WP table then they are NOT re-imported but the actual import process ensures that their forum membership record is created correctly.

I'm wondering if there is anything I can do manually to fix the posts-with-no-users problem? Otherwise there may be some interesting disection happening in my database to reimport the users that have registered since.. 🙂

Well ideally i would like you to try the revised code if you are willing.
I am still revising but I think the bbPress side of things is working as it should be so I would be happy to send it to you on the same proviso that this is beta/in development.

okay, I'll try it if you send it 🙂

Just sent it via email.

After I fixed the parse error, it installed fine and then threw this error:

NO GOOD- USERS

parse error?  can you elaborate so we can look into that?

actually yes - can you tell me about this parse error please? I don't see any problems at that line (you sent in your email) so I would be most interested to know what you fixed?

The cryptic message 'No Good Users' (one of those things still to clean up of course) means that when the importer attempted to interrogate the database using the settings you supplied - in this case to count the number of users to be imported - it either found none or was unable to connect to the database at all. I still have some error trapping work to do but I am inclined to thinking that it was the first condition - found no users. Does that help? 

I fixed the parse error by editing line 100 (the line above the error)

<?h3>, I changed it to </problem-with-post-edit-button3>

in spimport-setup.php

I'm rather bewildered as to why it found no users. Hmm. I will try it again on my clone and see what happens. There's definitely users in wp_users -- 3,200 of them 🙂

Thanks for the fix to the typo. Curious I was getting no errors reported.
Are you using the right table prefix? Is the users table in a different database?