Yes the various IME drafts have been submitted to IETF. The names are:
draft-rosenberg-dispatch-vipr-overview-01.txt
draft-rosenberg-dispatch-vipr-pvp-00.txt
draft-rosenberg-dispatch-vipr-reload-usage-00.txt
draft-rosenberg-dispatch-vipr-sip-antispam-00.txt
draft-rosenberg-dispatch-vipr-vap-00.txt