Explorer Browser Control

I am having a problem with the Explorer Browser sample code from Windows 7 API Code Pack.

I need to programmatically highlight and give focus to an item in the left hand pane of an Explorer Browser control just as if I had clicked on it.

CType(KnownFolders.Computer,ShellObject))" will highlight it but will not give it focus.  How do I simulate in code what happens when I acutally click on 'Computer' in the left-hand pane?

Then how do I send the Tab Key?  Will this work? "SendKeys.Send("{TAB}")"