The trick of understanding the message is to do a direct translation into another language such as Spanish. You then translate it back into English.

What he really wants to know is where can he find the ".pst" files that contain all his emails in Outlook 2003.

look here on the computer that has your emails:

C:\Documents and Settings\your user name\Local Settings\Application Data\Microsoft\Outlook\Outlook.pst

You can import this file into outlook 2007.