In order to have your certificate reissued you will need to generate a new CSR and submit it via our reissue system. If you need assistance in generating a CSR please have a look at the following link: http://www.geotrust.com/support/generate-csr/ Once you have successfully generated the CSR you may go to the link below to have the certificate reissued. https://products.geotrust.com/geocenter/reissuance/reissue.do