Using VS 2005 VSTO.

How do I progrmatically add a custom Navigation Pane Tab. The current tabs
are (Mail, Calendar,Contacts,Tasks,Notes,Folder List, Shortcuts, Journal)

For my first attempt at a VSTO solution was to create a custom tab and
hopefully load a webpage in the right area. If I cant load a webpage then
maybe a custom details pane.

I coudn't find any info on this. I did find info on adding command buttons
and the like.

Thanks for any suggestions or info!
--

- Paul