Hey Wes,
We're sorry that you seem to have had a bad experience with us. If you try sending another support ticket or emailing support that'd be great. Once again we apologise for any inconvenience that this down time has caused.
You'll need to download them to your computer then edit them there. Try using notepad++ its really useful and opens loads of file types and give you syntax for commonly used languages
Core/ config/ then the vehicle color.sqf folders, there's 3 of them, on for shops, one for the name of the color and another for the file path of the color. I recommend practicing good file structure within the textures folder (eg. Cop textures in a cop folder etc.). Hope that helped!