All I do for wings3d is load the figure without the head, hands and feet (or whatever else I don't need, such as below the knee if I'm making a mini skirt) and then model around it. Keep the figure locked and you won't have the frustration of selecting it when you really want to select the cloth obj you're making. Other than that, the rest is just plain old modeling for which there is a plethora of tutorials on the web ;o). After the modeling's done just export to .obj (without the figure of course) and import into Poser, parent it to the chosen figure and set up your dynamic groups and simulation setting. After you've set up the simulation as you like it, you can go back to the first frame in the timeline and save that clothing item to your library. Done :o).

If you were referring to converting conforming clothing, that's something else and I've personally never done it. I just model the stuff from scratch.

Laurie