Attached Link: http://downloads-zdnet.com.com/3120-20-0.html?qt=winzip&tg=dl-2001

I think you find if you do a search for WINZIP then download and install that you will be able to open the zipped poser files. .zip files are files containing other files in a compressed format (in this case the poser files) If i did it right clicking the link will take you to a download for it. Good Luck!