Hello and welcome to techzonez.
I don't have the answer but I can steer you in the right direction until someone can help you.
You can locate the outlook pst files here,
C:\Documents and Settings\ Whatever your account name is \Local Settings\Application Data\Microsoft\Outlook
or try here,
C:\Documents and Settings\ Whatever your account name is \Application Data\Microsoft\Outlook
make sure that you have your file system set to unhide system files and folders.
Good luck for now!
Bookmarks