The only way that I have been able to get the certificate issued is by using the cerreq.exe command.
First I had to launch Command Prompt "Run as Administrator"
From the command line run the following command:
certreq -attrib "CertificateTemplate:WebServer"
You will then be prompted to locate the CSR, the CA will process the request, you will be prompted for a location to save the newly assigned certificate.
And be left with something like this in the command prompt window:
You will then have a new certificate that you can use as required..