I don't even know what was said in the OP
This is the gist of what I got: your father no longer remembers his password, but it is saved in the web browser. You want to know how to recover the password
If using Firefox: Tools -> Options -> Security -> Saved Passwords -> Show Passwords -> Yes. You can now see all the passwords Firefox has stored
If using Chrome: Tools/Wrench icon -> Options -> Personal Stuff -> Show Saved Passwords
If using Internet Explorer: http://www.bleepingcomputer.com/tutorials/tutorial79.html OR http://techie-buzz.com/tips-and-tricks/how-to-import-firefox-and-ie-bookmark-and-settings-into-google-chrome.html then follow the instructions for the chosen browser using the above steps. Proceed to stop using Internet Explorer (optional, but advisable). Internet Explorer doesn't have a proper password manager (passwords get stored encrypted in the registry), so if you can't learn to remember your passwords you are better off not using it.
Consider using a password manager in the future such as KeePass or LastPass. That way all you need to remember is a single master password.
If all else fails, there is the following: https://account.live.com/ResetPassword.aspx. By selecting "forgot password" and proceeding to try to reset your password, there is an option for customer support (may only be available in the USA, though). Otherwise enter in the answer to the security question.
Create a new account, and set up the old one to forward all emails it gets to the new one. That way if you get locked out of the old one everything is fine.
I don't know if Hotmail has this feature, but I know Gmail does.
A better solution is to use an email client, thus making it so he can't get locked out. If someone can't remember one password, how will they remember two?