I am currently using version 2.68a of Blender and have almost finished a humanoid model, except for the bones. When I select the make parent with automatic weights option, it doesn’t make the automatic weights. Does anyone have any ideas why this won’t work? Is it a version-specific bug of some sort?
Rigify uses python scripting, but Blender defaults to “don’t auto run python” for security reasons. This might be causing your problems. Either check “auto run python scripts” in File>>User Preferences>>File Tab, or open a text editor window, find rig_ui.py and then “Run Script”. If neither of those help, you’ll need to post more details about what is happening at your end.