Can anyone help?

I had opened Frontpage and put in the XP disk to detect
and repair frontpage.  I chose to go back to original
settings.  After the whole process I looked into my
Outlook and all my email setting for my internet provider
was erased.  The most important thing was that all my
messages that I had received recently or had saved and all
my email addresses in my address book were erased.  

How can I restore the email address?

Help!