nenesak

hello buds , i need some help and i'd be thankful if u give me some help! i use IMGTOOL 2.0 . After replacing the new files with the original ones , i go for starting game but it shows the game original type of things which i had change before ;it seems the changes won't be applied. And also when i change the vehicle .IDE , handling , carcols ,.... to do a new trick (for example a new car ), my game steak in loading . what should i do?