If you add both email accounts to Windows Mail, under the one user account,
all email will be downloaded into one Inbox. There is no way to create
separate shortcuts to different accounts in one email program.
You could use 2 separate email programs, like Windows Mail, and Windows Live
Mail, and only add one of the accounts to each program.
Or, you could create a Vista user account for each boy, and set up Windows
Mail to have a single account each.