Outlook 2000 Help!   

I am stressed out!  I just lost all of my 
emails/contacts/passwords...everything!  I use Outlook 2000 for everything.  
Please help! This is what happened:
I signed on today, and was using my email.  All of a sudden, I couldn't open 
any emails, and an error message popped up.  Unfortunately, I don't remember 
exactly what it read, but it said something about 'not able to find the 
email.'  I decided to restart my computer.  When I tried to open the Outlook 
again, it asked me if I wanted to make a new email or get an old email.  
(Something like that).  I tried to click 'cancel' but it closed the program.  
I then clicked 'old email'  ( I don't remember exactly what it said, but in 
other words 'old email').  I went to Drive C:, Documents & Settings, Owner 2, 
Local Settings, Application Data, Microsoft, Outlook, Archives.  Outlook 
opened, but I didn't have any emails in there.  Since then, I have received 2 
emails, so I know it is connected to my email address, but how do I get my 
contacts, emails, passwords and everything back?  I'm so stressed out!  I 
have everything in there.  If anyone can help, I would be so grateful!  Thank 
you, thank you, thank you!

date: Tue, 20 May 2008 11:51:19 -0700   author:   Monica Monica @discussions.microsoft.com