Go to SAP Service Marketplace - http://service.sap.com/support. A prompt will appear
Enter your S-user details
One you're in the site, go to Help & Support > Search for SAP Notes
Just enter the SAP Note number in the number field and press enter. If you don't have the number, you can enter some keywords. The results will be displayed. Simply click on the note you want to show the details. You can also save a pdf copy.