New stuff:
http://libsgc.sourceforge.net/

Old stuff:
libsgc-0.2.0.tar.gz (2004-06-03)
libsgc-0.1.2.tar.gz (2004-05-23)
libsgc-0.1.1.tar.gz (2004-05-22)
libsgc-0.1.0.tar.gz (2004-05-18)