Noobpube

Hey, noob here, whenever i try to add new vehicles to the config list, the towing stops working with any of the original list, and it won't work at all. can someone tell me how to add new vehicles without corrupting the scripts? Currently, i'm editing with nnotepad, copying the values for say the A10, pasting this a line below and changing the name. What am i doin wrong? Thanks!