Renaming Multiple Objects/Bones

Having trouble finding a solution for Blender 2.58. There were add-ons that could rename all or parts of the names of multiple objects at the same time, being one of them, but I can’t seem to get it to install in Blender 2.58.
Any suggestions?
Renaming lots of bones one at a time is horribly time consuming.

put your armature in edit mode
get the armature,
get the bones
change the name of all of your bones … (but this depends of what you really want)

b = C.active_object
bd =
bdb = bd.bones # alist of all bones of the armature
bdb[0].name = “new bone name”