There is a link in Blue type that says [b]Click Here[/b] if the white paper doesn't open. If you are using IE to view these with hold down the CTRL Key and click on the link and another page should open with the PDF file displayed if you have Adobe Reader installed.
The reason that this is happening is related to the security settings that you have on your Browser.
Also right at the moment some server migration is taking place so it possible that some of the White Papers may be temporally unavailable due to the work being performed.
If you keep having problems there is a Blue [b]Help[/b] word toward the bottom of each screen which you can click on and directly contact TR for assistance. Posting here is not contacting TR you are only getting members who are willing to spend their time answering questions like yours to help you none of us are in any way connected to TR so for an [b][Official Answer[/b] you need to contact them but the above should provide a working workaround that will solve most of your problems.
Col