I lied- So sorry - try this
If you ever loose your password AND the game files, you can't use
the e-mail address you used before. If you loose the password, you
can still get it. Open the following file:
<Game Dir>\In Memoriam\Media\Dir\Save\User_X\user.cfg
with a Notepad (where X is the user number... mostly 1). The
password is just after the e-mail address.