Python is part of the base Poser installation and will be updated by any service release (current for P6 is SR2) The paths are relative rather than absolute (i.e.,":Runtime:Python:poserScripts:Utility:") so you have to install these Miki things in the same runtime that Python is under. The best thing to do is reinstall the packs under your primary runtime (after making sure that all the old ones are gone, check the file listing in the zip). Another thing is to contact the product author, who is probably more familiar with the ins-and-outs of Python than I am. There is also a Python forum here at Renderosity.