I show the same as your chart. For the gID I put =31, and the other numbers in the table went from 1 - 30; and I put the sort as 26 because the other sort numbers in the table went to 25.

I did an upgrade to the database but with a clean set of zc 1.5.1 files. I added my override folders, which had assorted customizations of my own template and also from other mods. I went thru the over ride files and removed mod files, and merged my custom template files; then started adding back in some mods that have have been cleared for 1.5.

On the database I went through and deleted old IH3 and Lightbox lines. However, I missed the admin pages query as I didn't know it was there. I tried a a few unsuccessful installs, then uninstalled. Then when I discovered the admin pages, there were 4 Lightbox queries in there - one for each of my failed attempts. So I deleted those and tried to install that last section of the sql file dealing with admin pages. It went in but with the errors as described earlier.

My data base is the same one I've had since zen 1.3.7; I've updated the db with each update of the files. I wonder if there's too much residual crud in there and maybe I should be starting from (ugh) scratch. This is the first time I've actually dared poke around in the phpMyAdmin and I may be in over my head ;o( The data base I'm playing with hasn't been live for a few years, but I've duplicated my actions when moving to live site from test site each time. ie. I can ditch the test db and just make a few products to test with, but I'll still have to update the live db eventually so I'm hoping to solve this as I pick away at it.