Create FTP for my vps

I bought a php script and the seller will setup the script for me but he said get me the ftp details from your hoster, so here is my convo with the vps support: Me: I need to setup a php script and I need the ftp details for the panel so I can upload the files. - Support: We would recommend you to create a ftp username and password for the domain. - Me: And how can I do that? - Support: Please check the following url to add the ftp user on your windows vps. [login to view URL] so I don't know how to do the steps in the link what I need is to create a FTP for my vps and install php to my vps easy work I know! php is already downloaded in the vps. just need to install it and create the ftp