Look on the File menu, select "Run Python Script", select the script you want to run.

In the case of the scripts I did, a Poser file chooser will appear, then choose the file you want to decompress / compress.

The problem with WinZip is that the extension not being stored in the compressed file is what I think is causing trouble.

If you will be using the script(s) a lot, then you should assign them to buttons on the Script palette.