I've found a free template compatible with both Joomla 2.5 and Joomla 3.X at this link.
In the page there is a quickstart archive that contains the Joomla setup and the template files built-in to easily get a website similar to the demo showed. I copied all the files in that archive in my web space for a new installation (hosting Linux, MySQL database, PHP version 5.3.28). The installation stucks on the first page. When I click "Next" after having filled the form (site name, admin credentials, etc) the setup doesn't go to the following page (the database one) and is locked in a infinite loading. Is this a known incompatibility with my PHP version and that Joomla package? I don't get this problem with a clean installation of the latest Joomla release followed by the installation of the standalone template, but I'd like to use the quickstart since my web page will be exactly the same as the demo.
What's the easiest wat to get a web page similar to the demo? Is it possible to move some folders from the quickstart archive to the latest joomla setup to achieve the same result?
It's the second time I use this CMS so I'm absolutely not expert (this is the reason why I tried to find a ready-to-go template). Thanks for your help.