The link you sent is not a PDF. Check the other links and see if they end in PDF. If they are not PDFs, you won't be able to open them in the Adobe Acrobat Reader.
If they can be downloaded, and if they are videos, you might need a video viewer to see them.
Can you watch them online? You would need a viewer for that, too. Maybe QuickTime or something else? I am guessing since I haven't seen the files.
Jane-e,
I want to thank you for trying to help me. You were the only one who stepped up to help me out. I figured out the issue. My McAfee firewall was blocking something when I downloaded the presentations. I’m not sure how or what it was doing, but when I turned off the firewall and re-downloaded the file it began to work like the others. I turned my firewall back on after the download and it still successfully works correctly. I was about in a panic because I have six red cross classes to teach starting the first week of January and I absolutely have to have these presentations to be in accordance with the Red Cross.
Thank you again and I hope you have a very Merry Christmas.
Soli Deo Gloria,
Greg Hart