and I forgot to add, judging by what you've put there, you're looking for a folder called "home". You can either unzip the Tiki files straight into "home" or create a sub folder called "tikiwiki" (or whatever you would like) and then extract the Tiki files to that folder instead. So then you would initialize the Tiki installation by going to http://localhost/home/tikiwiki/tiki-install.php (or http://127.0.0.1/home/tikiwiki/tiki-install.php)
I personally would recommend, at least for now, creating a sub folder to avoid over-writing any potentially important files. You should check the documentation that comes with the WAMP you are using to find out where exactly your web files should be placed.