You can get (US) free versions of adobe reader at
http//www.adobe.com/downloads
very easy to install on your computer
and once installed you get automatic updates I think mine is up to 9.4
Once installed follow Lisa_wanna_b_quilter's directions or
if the pdf have been saved on your computer look in Flder called MY Documents or Documents. Click on start and the popup should show the folder.
hope this helps
P.S. your pattern that you download is in pdf (portable document format)not the link or web address which usually looks like the following
http://www.quiltingboard.com