Powercrystals had taken back ownership of his mods for Minecraft 1.6.2, and yet another coder (skyboy) is currently maintaining them. See Threads.
See old Wiki for information, most of it is still up to date.
formerly TehKrush's Minefactory Reloaded - older versions here
Minefactory Reloaded 1.5.5 for Minecraft 1.4.2 - ported to Forge 6.x and MC 1.4.2
Minefactory Reloaded 1.5.4 for Minecraft 1.3.2 - ported to Forge 4.x and MC 1.3.2
Minefactory Reloaded 1.5.3 for Minecraft 1.2.5 - ported to Buildcraft 3, largely untested
Minefactory Reloaded 1.5.2 for Minecraft 1.2.5 - ported to Forge 3.x, does not need MLMP
Minefactory Reloaded 1.5.1 for Minecraft 1.2.4 *untested*
Minefactory Reloaded 1.5.0 for Minecraft 1.2.3