Packaging question: orphan UML GIFs

The following diagrams were provided in the "uml/conceptual"
directory in 1.0 beta but appear not to be referenced anywhere.
Are we missing a descriptive section or two?

   Conceptual Model.gif
   Hazardous Item Package.gif
   Item Package.gif
   Packages Conceptual Model.gif
   Party Package.gif
   Payment Package.gif
   Procurement Package.gif
   UBL-DespatchAdviceDependencydiagram-1.0.gif
   UBL-InvoiceDependencydiagram-1.0.gif
   UBL-OrderCancellationDependencydiagram-1.0.gif
   UBL-OrderChangeDependencydiagram-1.0.gif
   UBL-OrderDependencydiagram-1.0.gif
   UBL-OrderResponseDependencydiagram-1.0.gif
   UBL-PackagesDependencydiagram-1.0.gif
   UBL-ReceiptAdviceDependencydiagram-1.0.gif

Jon