Need help with MULTIPLE advanced guestbook

I am trying to use the advanced guestbook 2.2 and place it in several websites that I am making without adding another MySQL database. First I duplicated each of the tables in the advanced guestbook database, and each of the duplicated table name has REK after it, for example the new duplicated "auth_book" is called "auth_bookREK." Then I copied all the files for the advanced guestbook (which is under a folder called "guestbook" under public_html) to a new folder called "reklessg." I have changed all the permissions of the php files into 755, and the folders public and tmp has the permission 777.
But when I go to my site, for example "www.mysite.com/reklessg," I receive a Query Error....

MySQL Error : Query Error
Error Number: 1064 You have an error in your SQL syntax. Check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

Was there something that I did doing wrong or forgot to do? Was there any php files that I needed to edit or was there something I forgot to do in the phpMyAdmin when I was duplicating the tables?