Setting up website from back-up files PHP/MySQL

Hello, We have our website developed by another designer. Now we have the zipped files ready to be uploaded into our host. The documents we have are prepared in Joomla and website is using Parallels Plesk Control Panel. Our host is using a different MySQL server. Deliverables: * The website should be up and running from our host. * If there is any modification to make the site running this needs to be done. * My host allows only one database, I am not sure how many databases designer used but you should fit into one database. * Provide back up files of the website you delievered. * A picture guide on the work you have done. (I need to be able to restore the file from back up in case something goes wrong with the host or I have to move to another host)