What a busy day! I just heard from another Tester John Guin that he has another OneNote powertoy available. This one will export all of your Outlook Notes to OneNote with one click of the button. If you have been wanting to migrate your notes here is the time!
Download now: ExportOutlookNotestoOneNote.zip
Just click on Export To OneNote
Nice work John! If you have problems/questions please let us know in the comments below.
I found it easier to attach all my notes in an email from outlook 2003 client and sent it to myself. On received email with notes click File "save attachments". Store them in my documents. In one note insert file and selected them all. Appeared no problem but had to arrange them manually on screen.