PST only showing deleted Items folder

When I try to attach a privatefolder.pst file to Outlook 2000 (size 157 Mb), I only get deleted items and no subfolders.
I’ve tried to run scanpst.exe and it says it containt 4 subfolder and no error – but I still can’t see the mails stored here.
Anyone who has a clue how to restore the file? It contains important messages from my CEO
Thx in advance – JDJ