Well, first of all, RND is not accepting uploads (downloads) at this time, because the database isn't yet completely installed. So - you can't - YET. RND will post a notice when the database is complete.
Second, you will need WinZip. You can download it free, and after the trial is over it just gives 'nag' notices. If you have it already, then simply zip the zoo into a folder like (e.g. MoonZoo). Make sure and take a screenshot, as they are required with uploads. The screenshot must be 220x180. (Check the Rules in the Downloads section). Good luck. :original: