I have a new laptop with Vista installed and would like to import all my email files and addresses from Outlook Express

First you will need to actually install outlook express to your vista computer using Settings Transfer Wizard Using the Files and Settings Transfer Wizard in Windows XP
Or
How do I move my Outlook Express folders to my new machine? - Ask Leo!

NEXT, you will want to export from Outlook express to Vista Mail. The following is an excellent article on the entire process.

Migrate from Outlook Express to Windows Mail | Windows Vista for Beginners