If you want to remove the old items from your inventory (and you have to, to install the new ones), it's not enough to just delete the folder, you have to use the "REMOVE ITEMS" scripts.Delete the "Stuff" folder, and copy the "REMOVE ITEMS" folder in your override, start the game and load your last savegame, wait for the items to disappear from your inventory, then SAVE your game and quit. You can then install the new items. (Don't forget to delete the "REMOVE ITEMS" folder).Once you have any item in your inventory, its template is saved in your savegame file, so updating or changing the template in the override will do nothing until the items is removed and re-added to your inventory.