Right, and that's to be expected, since you've got it pointing to the wrong tables in your database:
a) Your old database has no "prefixes" on the table names.
b) Your new database has "zen_" as a prefix before each table name.
c) If you imported the "old" database w/o prefixes into your "new" database, you'll see that you have two sets of tables ... one w/o prefixes, and one with.
Just scroll down the list of tables, and you'll see a complete extra set that start with "zen_".
So, you need to do two things:
1. edit your 2 configure.php files, and set the DB_PREFIX to '' (two single quotes)
2. use phpMyAdmin and manually delete all the tables starting with "zen_".
Be careful you don't delete other tables starting with the letter Z by mistake.




