In the Order Information view, click on View certificate details.
A pop-up will display your certificate as shown below:
Depending upon the web server where you intend to install your SSL Certificate, you need to refer to the appropriate instructions below:
Others
Important
In order to install your SSL Certificate you will also need the SSL Certificate of the Certificate Authority (i.e the CA bundle). The CA bundle contains root and intermediate certificates of the CA and is available for download from here