File>Import and Export
Export to a File
Personal Folder File
You'll need to do Inbox and Sent in separate operations, so pick one.
Choose where to save it (My Docs, Desktop, just remember where...) and what
to call it.
Complete the operation.
Repeat for the other Outlook folder, using the same location, but a
different name.
Locate the exported files and copy to CD.
On the other computer, you can use the Import features of Import/Export to
import the messages over there. Be very careful when you get to the step
about which folder to import into - you don't want to put your Sent items in
your Inbox, and vice versa!