The zipcreate class was not written by me and is a little over my head. I did work with the author to make sure that epubs that it created worked within ADE and that the native zip utilities on both Mac and PC could open them.
I have looked at python as a possible language to pick up, but my scripts should be easy to port for someone with knowledge in both.
The scripts should be hosted wherever you are going to download or create the epubs from. There is nothing in them that most hosting companies would disallow (ie no exec() calls).