You can find a slide show that goes over the steps for deploying the collector, including generating a certificate, here: https://supportforums.cisco.com/document/12692336/how-deploy-configure-smart-net-total-care-cspc-collector
There is also a detailed blog here: https://supportforums.cisco.com/blog/12696871/self-service-onboarding-setting-cspc-25-collector
Thanks!