This is a walk through of how I renewed a Certificate. The wording and flow presented assumes that the user has interacted with a Grid that is under control of ARCS before and so the common dialogs for accepting certificates and getting through proxies have been ommited.
If you dont have a copy to hand, you'll need to download the JNLP file from
http://ngportal.canterbury.ac.nz/grid/grix-jdk5-bestgrid.jnlp
and then, from the command line, run
javaws grix-jdk5-bestgrid.jnlp
You will now running the Grix application and, as you have done so before, you should see the following form ...
and, having selected to renew, your details will be presented again, albeit with the requirement to enter a passphrase
after having entered one and selected "Request" you should see and OK the following two dialogs
before finally being to informed that
Having viewed your details, or simply cliked the OK button without doing so, you will finally be informed.
and you should now go and see your chosen RAO.
Your RAO should not need to verify your photo ID for a renewal
Once you have recieved notification that a certificate has been issued to you, you can then re-enter the JNLP application to retrieve the certificate as before.