Someone Stole My Msn Email Address How Can I Get It Back

I tried to go onto my msn email and it said I needed to type in my password.  I tried and it would not take it. I kept trying to no avail.  Then it asked for an alternate email address and I didn't have one so I made a hotmail address.  Still that did not work either.  The alternate that I used when I made the msn account was long gone by this time.  Now I have friends on my face book account telling me that someone is sending emails from my msn email account saying I am in England and need money sent.  Please, how do I get my msn account back.  Thank you...hope you can help.