If doesn't work then was a download problem ,if you try again check well file size, when downloading large files browser seldom notice a few kb lost in the process...but then programs don't work well, or not at all
anyway Partha has includeda recent but not the last version of gmic
(samj portable should have the last )
as for download gmic you may just grab from here
http://sourceforge.net/projects/gmic/fi ... p/download for 64bit gimp
for 32...search here
http://sourceforge.net/projects/gmic/fi ... rce=navbar