outlook express password

From: steve (stevejheaton_at_ntlworld.com)
Date: 07/30/03 

Date: Wed, 30 Jul 2003 11:22:33 -0700

I have forgotten my password for the main identity on
outlook express i was never asked for it till now,i have
started a new identity but cannot access my old e-mails,
does anyone know a way round it.