Cinelerra 4.3 is available at http://sourceforge.net/projects/heroines/files/cinelerra-4.3-src.tar.bz2/download
I'm pretty sure that the Cinelerra in portage is actually Cinelerra-CV from http://cinelerra.org, not the vanilla Cinelerra from HV. Having said that, it is definitely due for an update! What say you, media-video herd?
+*cinelerra-20111223 (23 Dec 2011) + + 23 Dec 2011; Samuli Suominen <ssuominen@gentoo.org> + +cinelerra-20111223.ebuild, +files/cinelerra-entry.patch: + New snapshot wrt #389315 by Rodrigo Severo
Thanks, Samuli!