GW to Exchange 2007

[merr]

We are migrating from Novell GroupWise to Microsoft Exchange 2007.

We are looking for the best way to migrate GroupWise mailboxes to Exchange, keeping all emails and cabinet folders.

Does anyone know a good program/tool to use for this process?

We have been testing "Kernel for Novell GroupWise to Exchange by Nucleus Technologies" but it has been pretty useless.

Any advice would be appreciated.

Thanks...