You created an Outlook 2003 style .pst that is not backwards compatible.
You could try this - download the 30 day trial of Office 2003, install only
Outlook, open your file using that version, then create a 97-2002 compatible
file. Once created, drag and drop your information from the new to the old.

Signature
--?
Milly Staples [MVP - Outlook]
Post all replies to the group to keep the discussion intact. Due to
the (insert latest virus name here) virus, all mail sent to my personal
account will be deleted without reading.
After furious head scratching, FuziCrayon asked:
| I saved all of my Outlook 2003 information in a personal folders file
| (.pst) and then had to send the laptop in to get worked on. Now I
[quoted text clipped - 3 lines]
| import it. Is there any way to access it? I really need my calendar
| appointments!! HELP!