how do you get all the modifiers to level four in tiger woods 07 for ps2

You get the modifiers up to level four by adjusting your equipment. Go to the equipment section of your character. Then select the equipment you are not currently using, and remove the modifiers from them. Once this is done, go to the equipment you are using, and add the newly removed modifiers. Takes a little time, and you may need to purchase additional equipment to get all the modifiers you need.