Now you know why it's called the N800 and not the E800.
Honestly, why is it that some folks think every single handheld device HAS to have business features?
You've totally gone about this the wrong way. You don't try to bend a device to work for your company you look for the best device that will already work with your company.

You're better off getting your "employees" E61i or E90 cell phones instead. If you have an Exchange 2003 backend then they can sync email, contacts, and calendar wirelessly with Mail for Exchange.

How many damn times does it have to be said already?
The N800 is a consumer-oriented device, not a business-oriented device!