It does work with 6.5. As it does with 6.0, 5.5, and 5.6. We recommend getting the free 6.5 upgrade if you have 6.0 because UV's were not properly supported prior to 6.5.If you do get the Pro pack take the time to look at the LW section of the Readme. We did our best to outline the differences in the LW versions as they related to Poser. BTW I'm the Poser Product Manager.