In this case of BIOS FASTFAME, the archives download with name 8IFE.100, 8IFE.110, 8IFE.120. When you download ends, rename the bios file for 8IFE.100.RAR, 8IFE.110.RAR or 8IFE.120.RAR (add the .RAR extension for te file).
Sorry for my english, it is becouse i'm brasilian boy and not speak english.