Attached Link: http://www.daz3d.com/support/index.php?id=65

QUESTION: Does DAZ support Poser5 and Poser5 specific products? ANSWER: DAZ thoroughly tests all products in Poser 4 and Poser 4 Pro Pak and Curious Lab's (the makers of Poser 5) has publicly stated that Poser 5 is backwards compatible and that all Poser 4 compatible products should work fine in Poser 5. Our experience, however, has proven that there are several Poser 4 compatible products that do not work the same in Poser 5 as they do in Poser 4. Because of this, you may experience some problems and/or difficulties with certain items when working in Poser 5. We will provide tech support to the best of our ability for customers experiencing problems using our products in Poser 5, but we may not always be able to provide a complete solution as Curious Labs has not done anything to increase Poser 5's compatibility with legacy products. We highly recommend using Poser 4 with DAZ Products