Replacing entire folder view with custom user control. (Outlook 2007)

In Outlook 2007, I'm trying to replace an entire folder pane / folder view when you select a folder to have a custom user control instead. The closest I can get is using a custom task pane, however, that is limited to how big it can be. I keep running into an advertisement from add-in-express which their product is able to do, but I was hoping for a less expensive solution to this. Replacing a web view with a customer user form / control would work too. The solution to this would be greatly appreciated. Thanks!

Note: I've taken a look at the 2003 CRM sample, but it doesnt' work with Outlook 2007.

The WebViewURL and WebViewOn properties of the Folder object control the display of a web page instead of the list of items in the folder. The CRM Integration sample at http://msdn.microsoft.com/library/en-us/dnbda/html/OtlkLOBCRM.asp demonstrates how to use such a web view to completely change the Outlook display.

This sample is for Outlook 2003, I'm trying to get this to work with Outlook 2007. I was referred to this by a developer here, but he said this solution will only work for Outlook 2003, which I have also tried and found out.