Delphi 7 and Windows 7 COM help

Windows 7 introduces some new features beside one of them is new taskbar support. More about this you can see at [login to view URL] Adding support for custom jump list when user right click on a taskbar item of your application should be very easy to implement. Few COM objects, few COM function calls and that's it. There is a official Windows 7 SDK that has two sample applications how to implement all of this stuff. We already prepared all COM interfaces, all objects, all structures and made almost the same demo app in Delphi as Microsoft's official demo for Virual Studio 2008, but somehow nothing works. We need someone who has Windows 7 beta installed, you has Delphi 7 and COM knowlegde to help us this application works out. There is probably some few characters changes to make this work but we don't know what.