another point of view for the noob in all of us
this file ONLY changes what YOU see, not any one else. You cannnot change any stats and see real effect in the game. it is just like your mirror. you see yourself in reverse of what others see you but until they look over your shoulder they will never see you as you see yourself in the mirror (small mirror) So unless they are on YOUR computer they will not see how you change your itemtype.dat file.
Oh and you could get the -.- look if you just happen to mention it to a team mate who dont have it or the :O i want that file! hapened to me once, on both accounts.
This is also true with the monster.dat file in my siggie it changes how you see the monster, nothing more. the rest of the info is on the server or other person's comp. :bandit: :D cheers!