I tried to import the .pst to my new mac but got error
The version of outlook in my old windows laptop is office 2003  and new mac outlook is office 2011.
The error is following:

Microsoft Error Reporting log version: 2.0

Error Signature:
Exception: EXC_BAD_ACCESS
Date/Time: 2012-12-26 05:51:57 +0000
Application Name: Microsoft Outlook
Application Bundle ID: com.microsoft.Outlook
Application Signature: OPIM
Application Version: 14.2.3.120616
Crashed Module Name: PowerPlant
Crashed Module Version: 14.2.3.120616
Crashed Module Offset: 0x00007c5f
Blame Module Name: PowerPlant
Blame Module Version: 14.2.3.120616
Blame Module Offset: 0x00007c5f
Application LCID: 1033
Extra app info: Reg=en Loc=0x0409
Crashed thread: 0