The procedure involves making a simple copy of the Outlook Express folder, then using import from that copy to your folders at home. Rather elementary.
You'll need 'something' to transport the backup copy between your temporary home and your permanent home. A cd-burner or USB-stick would be nice. A zip-file sent by mail might do.
And, of course, it's good to know how to make a backup of your Outlook Express data at home also, just in case you don't like the idea of losing everything in case of a hard disk failure.
Good luck, have a nice summer.