Hello, has anyone used the N900 with a zimbra Network Edition?

So far mail has worked great, but it is only synching the default Contacts and Calendar folders. For example I have a "Work" Cal and "Work" and "Family" contacts that are not showing up on the device. Anyone have ideas of how to get this to work, or do i need to sacrifice my organization and combine them all together to see everything on the device?

help is appreciated!