hm, the issues from world db it's because the updates from the updates folder. You should have imported them in wrong order, or skipped some. Re-do the world db, following exactly the wiki, and it should be fine.
I don't know exactly how to fix de mysql version mismatch, but I think that copying the libmySQL.dll from C:Program FilesMySQLMySQL Server 5.xlib and pasting in your server's folder should fix it. But like I said, I'm not sure if this is the correct way.