Thanks everyone for replying.
I want to use the whole .pst file so I can use all my contacts, calendar, email etc. I can do it manually and I know you can buy programmes that will do it all (outlook backup)
http://www.backsettings.com/backup-outlook.html
and a few others, but I'm a typical pilot and hate spending money on this stuff when Microsoft should really have this as an optiion.
Anyhow, thanks guys