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The Default path for All Microsoft Office Outlook .pst file location is the User data(Your account name)/Local Settings/Application Data/Microsoft/Outlook/ this is where the .pst files are stored by default!!! this goes for All Windows OS! Tuesday, June 05, 2012 12:18 PM.
Entourage doesn't provide direct support for PST files, as this is a Windows Outlook file format. Entourage won't be able to read your PST files directly, but there are tools and methods available to import PST files into Entourage. Basics: Your .pst files need to be converted into .mbox files so Entourage can import.