gthumb (Image Organizer) was EOL'd back in May 2006 so is no longer available in Solaris Nevada/Express. I don't know the reason for the EOL - maybe it is not an actively maintained module.
We have moved it to the 'spec-files-extra' repository, which is available on SourceForge.net: https://svn.sourceforge.net/svnroot/pkgbuild/spec-files-extra/trunk/ (info: http://sourceforge.net/forum/forum.php?forum_id=617953) It is there in the SUNWgnome-img-organizer.spec and linux-specs/gthumb.spec files. You will need the CBE to build it. There are legal issues that prevent us in Sun building and distributing binary packages for these unsupported packages. Sorry. This message posted from opensolaris.org
