I've downloaded a template for phpBB and now im trying to install it the site that i got the download from had a tut but it was way too straight forward help plz
Upload the whole template folder to the directory called themes in your phpBB installation. Then go into the ACP and under styles click Add. Then just make sure you go and switch the theme under the general configuration. (phpBB 2, have not yet had a chance to try 3.)