First off, you use only one genital prop on the figure, not both, if that's what you're doing, based on what you wrote that's the impression I got.
Here is what you do for Dicktator:
Load the Genesis 8 male you want to use, do any morphs or skin adjustments you want first.
Then select the Genesis 8 male node, not one of his body parts like his pelvis or thighs etc, make you have HIM selectoed as the complete model.
Then load dicktator.
If you have extreme morphs, like very obese, very tall etc, then the rigging can/will be off and sometimes this can cause the dicktator frat/prop to distort. If this happens then select another model or ask Meipe for help as sometimes he will update the prop to fit some characters.
Next load the materials then follow his instructions for copying the geo shell.
I hope this helps.