PLK is now available here:
http://www.kurvstudios.com/software/

Yes,  it does translate them as well. :)

Typically I load in the character then the cloting separately then delete the mesh covered by the clothing. The weightmapping seems to work fine when Ive tested it but I typically dont use them.
You can also create your own weight maps if you want.
Im not sure what you mean by translation data. What ive typically done is load a bvh file into poser, save the pose and then load it into LW using PLK. In LW I use iKBoost to edit the mocap.

I just uploaded a 2nd video showing a few more options.
http://www.vfxcast.com/media/1278/Poser-to-Lightwave-Demo-Pt2/
Use this link to subscribe to additional video updates:
http://www.vfxcast.com/my_subscriptions&tag=SplineGod&type=user

Great thanks! :)

Ive used HDR lighting in poser with pretty decent results. What I cant figure out is how to mix regular lighting with HDRI based lighting. When I add any extra lights they dont seem to have any effect even with high intensities. Am I missing something or is this a limitation? Any workarounds?

Quote - HDRI is a type of reflection map that goes onto a model. True HDRI can project light. Fake HDRI simply is a reflection in an object. Global lighting is a fake form of radiosity, which is different from HDRI. The bryce forum is well advanced in faking HDRI and radiosity in software that does not have these features. So here's a P5 render with fake HDRI. I just plugged an image into the reflection and diffuse nodes on a primitive sphere with a copper texture to it.

HDRI is not a type of reflection map anymore then any other image can be a reflection map.
ANY image can be used to 'project light' (assuming your application of choice supports that).
HDRI stands for High Dynamic Range Image. Its just another image format like jpg, tif, gif, tga etc etc. The difference is that it contains far more color information and a higher dynamic range intead of the usual 256 levels fo gray in a standard 'LDRI' (low dynamic range image) that we use everyday.