The problem with zipping up an entire scene's contents to share with others is one of copyright - there would be nothing to sto you from giving other people files which you have purchased but which they do not have the right to own. There are methods around this, such as RTE Encoder, which searches your hard drive for a copy of the original files before allowing the new modified version to be unpacked; but whether this would work on something as large-scale as a scene, I'm not sure.

You can use the python script embedded within Poser to compress scene files, and possibly you could then pass this on to other people: I think the scene file would reference external geometry, rather than containg all the vertex data for each figure. But it would rely (I would imagine) on the receivers having exactly the same runtime structure as yourself in order for the scene file to find all the relevant bits.

In short then (and please, bear in mind this is simply my semi-educated guesswork and ramblings, rather than a definitve answer), you can't pack up everything in the scene and give it to someone else (or store it for your own use at another time); what you might be able to do is to compress a file which tells Poser which files belong in that scene, and pass that onto others so that you could work on the same scene together, shutling it back and forth.

Don't know if this helps at all, or if I just wasted five minutes of your time reading this.

jonthecelt