The Logic Off Topic list

I'm trying to rename some files on my hard drive. I've tryed the >get 
info>ownership and permissions>read and write
It still won't let me rename the files. I don't know much about this 
side of OSX. I do know that this is my computer and when I want to 
install software I have to type in thhe admin password.
This is annoying. I guess that's the price you pay for more features. 
My G3/OS 9 let me rename anything.
Help.