studmuffin88jr

I need some major help. i can make a custom car for nascar 09 but there was always grid lines non the car. yes, i use the paint can to pour paint on the car but that does not make the lines go away. so then i started messing with the layers and then the sponsers went all over the car. ppl have told me to uncheck the mesh but there is no mesh. if there is plz tell me where to find it. any help is appreciated. if u want to contact me my xbox 360 GT is studmuffin88jr. thx