hi,
what are you doing you must install this hack the following way
- upload the hack files to your server (keeping the standard vb directory structure intact
- run install_warn.php(lataest version)
- do ALL of the .php files and templates edits
then and only then you can try to see if it works i think you are trying to see if it works when you are not completely done yet.The database errors you are getting can only be caused by incomplete or outdated installations