Re: My wife an I are divorcing an would like to setup a separate iTunes account
Welcome to iMore! If you're asking how to set up a new Apple ID for use with Apple services--like iTunes--go to http://appleid.apple.com and click "Create Your Apple ID". Best of luck with everything.
Re: My wife an I are divorcing an would like to setup a separate iTunes account
One of you can keep the current account and the other setup a new account. If one of you keeps the current account, just go in and edit it for yourself. Or both of you setup new accounts which can be done here.