I ma having problems where the username does not appear in posts. I am using the latest version on a windows 2000 server. There is no error message. I get the number 1 instead of the persons user name.
Have you in any way edited topic.asp? It looks like the value 1 is used everywhere instead of showing the username of the post's author and getting the correct ID to that author's profile.
Save your topic.asp as a .TXT file and upload it to your server. Then post a link to it here so someone can take a look and hopefully tell you how to fix your problem.
I think that might indeed be it. It's getting the wrong value from the database and I think it's because the PM MOD's field isn't the first on in the table but the last one. Now it's using the member status instead of the member ID or name.
You'll have to make sure you made all changes exactly as stated in the readme file for that MOD.