Convert Mesh to Armature (need help)

i can’t find this addon after install in addon bar http://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Object/Convert_to_Armature
both of them(addons) after install won’t show even not any error, what could be the problem? i am using mac ox 64 bit blender version.
I tryed to put them under scripts and after that addons in software still nothing happens.
I relay need this Convert Mesh to Armature addon.
thank you!