I only have one, i watched a video about moving it in the mods folder so thats what i did, but there was no update folder prior to doing so in the mods folder

Im trying to install car mods and all the tutorials i see involve going to the update folder in openIV. But my update folder is empty. Usually i see them click a file named x64 in the update folder but i dont have that. I have it on the left side where i can find levels/models but when i try to install cars that way it never works. I get the "___ was no found" message". Did something get deleted or did i delete something on accident? I just got the game as of yesterday and havent touched anything in the files until a few hours ago. Any help would be appreciated