I'm guessing you mean the CA .packs in the data folder. If so, that's your problem. You need to follow the tutorial and create a custom .pack. Also pay attention to the bit about starting with the most recent tables.
If you need to fix anything in your default files, open Steam and right-click NTW. Select Properties>Local Files>Verify game cache. Steam will search your files and return any that have been changed to a default state.