You may not be able to change your password even as for that i guess you have to enter the current password, which would have been changed by hackers. So I guess it's already too late. Your Nokia 82 has configuration in which your hotmail Id page is directly shown, but are you sure you can also view the updated version of the inbox page?
You can retrieve your id by going to hotmail help crew. They will ask you the secondary alternate email id that you supplied at the time of signing up. If you remember it, then they will provide ID and password on that email. If not then secret question and reply will also be asked. Best of luck.