hmmm thats a tricky one. I can think of 1 way to do a single frame (when dynamic cloth is involved) its a bit of a pain, but this WILL work. I am pretty sure that if you move frame 20 so that its frame 1, you will lose the dynamic calculations, so you will need to export the dynamic cloth to an obj file, so that its current state (in frame 20) is saved to file. delete the dynamic cloth item from your scene (if you have created a custom set of materials for the dynamic cloth, you might want to save them?) then, in the keyframe editor, highlight(from top to bottom) all squares in the 20th frame column, then drag them to frame 1 (this will take all pose and position information to frame one, but like I said, I doubt it will take the dynamic calculations with it, although feel free to try!) quit out of the keyframe editor, and then in the animation bar set the scene frame count to 1. now, import the exported dynamic cloth object. In the window that comes up allowing you to change how the object is imported, simply untick ALL OPTIONS, this will ensure that the object comes in at the right size, in the right place. now you have a single frame scene with the dynamic cloth and all! I hope this helps

TemplarGFX
3D Hobbyist since 1996
I use poser native units

167 Car Materials for Poser