Some poses do, but the figures have different skeletons and rigging so most poses will need adjusting and some simply won’t work. Then there are also poses which destroy the hands and feet.
There is a free script from Adam to fix the hands and feet (http://www.daz3d.com/forums/viewthread/306/), but if you want decent poses its better to use PoseMaster (http://www.daz3d.com/shop/posemaster-for-daz-studio). It transfers poses between figures close to 100%, and can also handle animated poses and batch conversion among other things. I recently released a new People Pack for all the DAZ figures.
I hope it works for you and please shout if you need a hand. There are a few video tuts; start here: http://www.youtube.com/watch?v=uGI0XAqtmdg
I’m going to have to get this one of these days…I’m getting tired of tweaking older poses.
But yeah they do ‘work’, mostly…like cridgit said. I’ve ‘tweaked’ more than enough to know that even though the differences, in some cases, are minor, a little bit is enough to throw off the pose.