The Adobe window is just an advertisement link to update with.
The actual PDF's are in the menu section to the left of the screen labeled Alphabet Commercial, Key, New Model-P08, Old Model and Postwar Carbine pdf.
They are outlined in yellow in the image below ... just click on the section you wish to view.
By the way Dwight, Thank you so very much for your excellent work ... we all appreciate it and value your efforts.