Can't Read PDF

[Michael Satterwhite]

I just received a PDF file that I really need to process. When I try to 
open it, I get

To view the full contents of this document, you need a later version of 
the PDF viewer. You can upgrade
to the latest version of Adobe Reader from 
www.adobe.com/products/acrobat/readstep2.html
For further support, go to www.adobe.com/support/products/acrreader.html

I tried to go to the Adobe site and get THEIR pdf reader, but it tells 
me it isn't there.

Does anyone know how tp process this, or do I have to go to a Windows 
machine to handle this?

Thanks in advance
---Michael