I recently used the stsadm import/export operations to migrate data from a
subsite in our staging environment to the production site collection. After
the import was successful, I noticed that two properties had been changed on
all of the list items:

-The "Created by" property was set to my name
-The "Date created" property was set to the date of the import

Is there a way to transfer data from the staging to the production site
while preserving the original "Created by" and "Date created" information?

A few other details:

-The staging site is a subsite of another site collection (i.e.,
http://portal.company.com/sites/discussion), but the production site is a
top-level site collection (http://discussion.company.com)
-The staging and production sites are in different domains

Any ideas on this are appreciated.