Quote Originally Posted by MeltDown View Post
I've searched through a number of threads concerning this add-on but haven't seen others having SQL issues, as I am. I ran the SQL through both phpMyAdmin and the admin SQL Query Executor without success. Could it be a conflict with Apple Zen? I only ask because I know that Apple Zen forces sideboxes to the right and I'm wondering if that could possibly cause an issue with this mod.

Thanks - Tim
Noo, thats a SQL error, and forcing sideboxes to the right as nothing to do with that. I have that same mod on my test site with no issues. The duplicate key error means that has already been added to your SQL; perhaps the first time you ran it, part of the SQL query worked, so you already have that in your database. I'd go to phpmyadmin and search for PRODUCT_LISTING_LAYOUT_STYLE and see if there are any entries for that in there, and remove them if so?