Install again.
After fml8 installation, rewrite fml_version line in /etc/fml/main.cf to the version installed now. Just when the file is saved, fml is changed to the new version.
author's homepage is www.fml.org/home/fukachan/.Also, visit nuinui's world :) at www.nuinui.net.
For questions about FML, e-mail <fml-bugs@fml.org>.