Transgferring mail from Outlook 2003 to 2002

I just bought a nice new PC & am in the process of moving a load of my gear from the old one to this one. I had a spare copy of Office XP (including Outlook 2002) so I loaded that on to it.

My old PC has Office 2003

Now when I am trying to move my mail accounts across I exported all my mail on the old PC (Outlook 2003) to a pst file, but when I tried to import it to the new PC (Outlook 2002) I was told it dod not support that file format ....so I guess there must be a change between the formal of pst files between Outlook 2002 and 2003.

HOw do I achieve this, without having to go & purchase a new copy of Office 2003

thanks

PS New PC is runing Vista

 

You could try this http://support.microsoft.com/kb/290859