Yes, the original item editor module is wrong and won’t work with c2ea.
You can get pre-ripped ones here. By pre-ripped, I mean you don’t need to run n2c. Just make the changes in the csv, save, and run c2ea.
A tip: Copy the .csv (and any related files, such as the module and definitions, if any) into your project folder. Only bring in the ones that you’re actually changing. Otherwise, EA is going to insert a bunch of tables that you’re most likely not going to modify, which adds a not-insignificant amount of time to the compiling process.