HowTo: Insert Item to Dotnetnuke Braidcrumbs

Dim objCrumb As New TabInfo()  
objCrumb.TabID = Null.NullInteger
objCrumb.TabName = "Test"  
objCrumb.Url = "Your URL"
PortalSettings.ActiveTab.BreadCrumbs.Add(objCrumb)

The code above will insert a test link on your DotNetNuke BraidCrumb SkinObject.

HTH