The clothes work fine in Poser 5. You just need to do the extra step of copying and pasting the morph dials. You almost always get some pokethrough with tightfitting clothing in extreme poses. It's almost unavoidable. :) It could be that the joint control morphs aren't being pasted when you copy and paste. Honestly, I paint clothes 99% of the time, and if I do use clothes I fix pokethrough and other problems in Photoshop. It's faster than making things fit perfectly all the time for me.