FERRET 6.6.1 with Linux(g77) 2.4.20 - 5/21/2010
FERRET 6.4 with Linux(g77) 2.4.20 - 12/07/2009
FERRET v6.2 with Linux(g77) 2.4.20 - 5/21/-9
FERRET v6.08 with Linux(g77) 2.4.20 - 11/15/07
FERRET v6.0 with Linux(g77) 2.4.20 - 09/07/06