I'm setting up a new PC for my parents and I did the mistake of downloading all their email before I transfer the profile over, so I can't overwrite it now. How do I go about transferring all their old emails and merging them with the new emails?
To make matters worse the new PC uses thunderbird 3.x and the old uses 2.x.
To make matters worse the new PC uses thunderbird 3.x and the old uses 2.x.
