HELP! I want to sell Logic Studio v2.1

Hi I really want to sell my copy of Logic Studio v2.1 (Logic Pro 9) 2010 roughly. I can't find anywhere what exact version Logic. Is it 9.1.4 or .5, or,8??? How do I deregister the product? I haven't found anything available on either. I even tried installing the Logic just to check the version and nothing!!