[pokusek]

Well, the sizes of both databases (old and new) are the same (about 100 MB). I just checked those tables and everything seem to be fine.

In fact, before I made the step #2, I uploaded the unmodified old database to the MySQL server. I was not able to access the forum on my main domain, so I used my web host's temporary URL (myaccount.mywebhost.com) to view the forum.

Surprise, surprise - I saw the same screen I posted in my first post. Only the diacritic characters (displayed in yellow notify bar; I removed it after so it is not in the picture) were messed up.

I thought that was caused because of vBulletin antipiracy policy, so I just deleted everything I uploaded and hoped that if the URL of my forum would be the same, this would not happen.

And then I made steps 2, 3, 4, 5, 6.