Butlerisland,

to help troubleshoot your issue, can you supply some questions to the following answers;

- Is this .PST file your current .PST or an archived .PST?
- Have you imported this PST into your Outlook client?

If the PST is not set as an archived folder, you will not be able to search for any content within the file.

The PST will need to be designated as the archive file.

hope this helps.