no, allow a few script kiddies in! fucking up hotmail can only help spread the word about how insecure msn is anyway...
as for cracking that hotmail account, good luck, but i can't/wouldn't help you, i'm afraid, although i am sure that if msn does run (as it says it does) off windows 2000 servers, then it should not be that hard. Maybe a spam/multimailer attack would be what you are after, if you just want to cause havoc...