How to install your SSL Digital Certificate
SSL Certificates will be available for download when validation and processing are complete. (The SSL
certificate itself is a text file; it is encrypted data that your web server will be able to understand when installed as a digital certificate.)
Before you begin the installation, make a back-up of your certificate that you can keep in a safe place. This makes re-securing your server much easier if your server crashes.
Follow this link-
http://www.digicert.com/ssl-certificate-installation.htm