Converting skin texture for G2F with EZSkin is different than normally encountered with the other models.  Genesis 2 has a unique material zone naming convension which means when you apply V4 skin textures, for example, you generate a duplicate set of material zones that is not recognized by Poser.  The following link to the DAZ forum will clarify how to effectively do the conversion.  However, you will need to install DAZStudio and purchase other scripts to get good results.

http://www.daz3d.com/forums/viewthread/24101/