The goal of retargeting is to transfer a motion from a source armature (e.g. MakeWalk is a Blender add-on for retargeting mocap data (.bvh files) to a given armature. The MakeWalk tool is now found as a tab on the T-side-panel in Blender.Reference to armatures in older version of MakeHuman.Most of the fundamental information is quite usable, nevertheless. There is a wealth of important information in this document, but some of the detail is badly out of date.