The system of the Nokia E71 has nothing to do with that of Windows Mobile HTC, installing Funambol raises bigger problem including the error message Can not open Database.

It must actually recreate a new connection without relying on the existing one called Funambol. You name it Funambol and then you must add the applications to synchronize and call them: contacts and calendar. Ensure also allow bi-directional mode failing to get a system error.

Then you can schedule synchronization and move the Sync module on the main page of your Symbian. I failed unlike HTC phone to schedule a synchronization interval of regular time.