if you uploaded the zip file then you will not see from the automod tab.
you need to unzip it first, then upload it to the store/mods folder.
also, considering your server setup I would be surprised if automod is going to be able to do it's job without making changes to the server setup. quite often automod has problems even with the more standard shared hosting setups.
first, setup your file permissions so they are equivalent to this: phpBB3 Chmod Permissions
check the automod configuration and make the best choice there based on your server setup and/or change your server setup accordingly.