This update package requires the new version of NGV7 that is compatible with DAZ Studio 4.9.3.166. It includes new UV and texture templates, that will allow the New Genitalia For Victoria 7 to be applied to Ophelia 7 and any other characters use Ophelia 7 UV. This package also contains a set of bending correction morphs which will automatically fix the distortion caused by thigh bending.
You just need to unzip the zip file, then copy all the contents of the update package to your DAZ Library folder (New Genitalia For Victoria 7 must has been installed in this directory). When the "Confirm Folder Replace" dialog popup, merge them with the existing folders.