If you have Poser 6 forget about all that other stuff and in the material room just plug fresnal into the refraction node for the object you want to make look like glass. This gives you reflection and refraction. Make sure all your transparency settings are 0.0000 and set diffuse and specular to pure black. Set the refraction value to 1.0000, and click raytracing in your render options and set raytrace bounces to at least 4. All this other stuff was done before Poser 6 came along and made it easy.