As posted here many MANY times - often several times daily.
Do NOT use the import/export function to move Outlook data from one Outlook
to another.
Why not?
(Courtesy of Russ Valentine [MVP-Outlook])

Importing an entire PST may well corrupt your profile and may create a ghost
PST that you can't close. Importing PST's will lose:
1.  Custom Forms
2.  Custom Views
3.  Connections between contacts and activities
4.  Received dates on mail
5.  Birthdays and anniversaries in calendar
6.  Journal connections
7.  Distribution Lists

Opening a PST file will preserve all of these. That is why we do not advise
people to import a native file into Outlook.

To answer your question, do it this way:

take a look here:
http://office.microsoft.com/en-us/outlook/HA010771141033.aspx

more info here:

http://www.slipstick.com/config/backup.htm
http://www.howto-outlook.com/Howto/backupandrestore.htm

HTH

Well Importing is not the way to deal with native OL data
Within OL, File>Open>Data File......browse to location (NB a cd is no good,
it needs to be located on the HD)