Well like I said I am new to this so all I can do is explain how I got mine working. What I had to do is compile my instance executables from source and run the instance sql on the database. After I did this, it just worked. I was getting an SQL error also when my zones would load.
If you do not want to go through the whole compiling thing, have you tried these ? Backup your executables first and maybe try these that are precompiled.
http://code.google.com/p/projecteqemu/downloads/list