The morph gets loaded as a shapekey (visible in the mesh-properties panel), and will be based on the base shapekey of the mesh. If no base shapekey is defined, the script will create one. If you select the Aiko 4 shapekey and dial the value to 1, you will see the morph applied. Note, that this script only loads the morph, and no poses; some Genesis characters not only contain the morph, but addionally an automatic pose (usually to make Genesis or parts of it smaller), but this script does not handle this.