Below is a link for anyone who is having trouble completing the maze with the worm. Game was saved right after completing it.
http://cl.ly/JfgCFor Mac users, the file path for your saves folder is:
{YourHomeFolder}/Library/Application Support/Amanita Design/Botanicula
So, locate that folder and replace it with the one you're downloading. Saved in slot 5.
Note that the user's Library folder is hidden from view by default in Mac OS 10.7 (Lion) and above. If you're using 10.7 or above, this link will tell you how to find (or unhide) your Library folder:
http://reviews.cnet.com/8301-13727_7-20082044-263/os-x-lion-where-did-my-library-go/