Loading the Genesis figure

After you select the import from the menu, you will be presented a file dialog in which you can choose the Genesis.dsf file. The Genesis.dsf file is located within your DAZ-Studio installation's data folder. On my system this is V:/dsdata4/data/DAZ 3D/Genesis/Base/Genesis.dsf. Note that there might be another Genesis.dsf within the People directory, this is not what you need.
The other options of the plugin (materials, groups, uv-map) are not effective, because this is a reduced version (i wanted everything one one not-too-big file).