Does anyone know any site or sites that can generate (self signed) ssl certificates (free) for testing purposes?

search on google.com

CPanel should be able to generate self-signed certificates for your use. If all else fails (or you don't have CPanel) you can look up the CA functions in OpenSSL on www.openssl.org. :)

Mind you are right. But cpanel created certificates are only valid for 30 days. I don't wanna have to create a cert every month. Maybe someone know how to hack the script that creates these certs in cpanel.