Archiving will operate on your Journal, especially if you have the default
archive settings applied to it.  Right click on the Journal folder and
select Properties, have a look at the Autoarchive settings and that should
tell you whether it is being archived.  You can find the location of your
archive file under Tools>Options.  Click on the Other tab and click the
Autoarchive button to see the settings.

Andrea Jones
www.allaboutoffice.co.uk