[Zope] How do I export objects with the change history

I have a wikiweb that has all the change history since its inception available to users. I want to export this to a new Zope installation without losing this information. How do I do this? ---- Dylan Jay mailto:djay@avaya.com Avaya Communication Tel: +61 2 9886-8961 Level 3, 123 Epping Road FAX: +61 2 9352 9224 Nth Ryde NSW 2113 Mobile: 0409 606 171 AUSTRALIA