Linux Mint 17.3 Installation

Hi- I’ve downloaded the latest version of suite and am trying to host it locally (var-www-html-filename-) - I get errors on the loading wizard after accepting the T&Cs- it says the files may not be writeable but I have updated to the permissions- and some of the files seem not to be there at all. surly I am just missing some chmod code- but cannot seem to find anything that works- can anyone offer advice on this at all?

Feel free to bin this- all hosted properly now… and running smoothly.