I've never got Genesis working properly in Poser but that is neither here nor there. If you have it working do you have the phonomes working as well? If so then you are ready to make your xml file.

Simply open any xml in a text editor V4, Alyson, whomever; and replace the existing phonome referances with those for Gene. The expression files are simply face files. Just make the face shape you want for "angry" or whatever. Save it to the faces tab and referance it in the xml.

The whole process should take you less than 10 minutes and you will be able to make any figure talk in Poser this way.

I would do it for you but as stated above I do not have Gene working in my version of Poser.