Owner problem?

I am using a freebie cloaking script on an item i made. My friend wanted a copy, so i gave him one. Problem is, even when he is the owner of the item and he even has it attached to him, it will not listen to him - even worse - it still listens to me. I thought it might be a "llGetOwner" problem, so i used several different ways that i found in other scripts, but it still didn't work. I am pretty much a scripting idiot - so i know i am probably just missing something totally stupid - but any help would be greatly appreciated.