Yeah, well it's suddenly 57, going down to 38 tonight, so they say. Might have to break out a sweater. ;)

I'd have to admit I don't know much about the finer points of rigging in Poser. For one thing, the camera views drove me to the point of not wanting to even experiment, and for another it seemed sometimes when trying to rename bones, the names wouldn't "stick". It's just a thoroughly irritating experience as far as I'm concerned.
I would like to be able to do it better, and maybe this so-called Poser Pro will make it easier, but we'll see, I suppose. I can't remember now what the features for the next version are, or if it will include a better Setup Room, but I would think it would make sense any "pro" app designed for posing and animating figures should have good rigging tools.
I'm concerned though that the only thing really "pro" about it will the ability to export a scene into C4D.
Time will tell.