I was on my messengers when it signed me out and I tried logging back in but my password won't work then I loogged on to my other account and no ones on the one that won't work how do I fix it

Look for this entry and select --- > Repair or remove MSN Messenger ---Click Repair

https://support.msn.com/eform.aspx?productKey=messenger&ct=eformtsRepair

Hope this page helps you --- If it does please rate my answer

Are you on Windows VISTA ?