Upgrades do not lose data. Apparently you did not migrate your data
correctly. All your data will still reside on your hard drive as a *.pst
file. Read the instructions on how to migrate your old data:
http://office.microsoft.com/en-us/assistance/HA010771141033.aspx

Signature
Russ Valentine
[MVP-Outlook]
> upgraded from office 200-Outlook 2000 to Outlook 2003
> Lost all of my contacts...Not a nice upgrade How do I get my Contacts
> back?
> LeeW