Skynet Framework actual builds are hosted on GitHub. All you need to do is to download or clone repository and put it on your server.
It is preferred to start testing (if you using it at first time) on localhost server. After download and unpack archive or clone repository you will se some files and directories.
Get Skynet from GitHub here: https://github.com/szczyglinski/skynet
You can download or clone repository. Remember that Skynet is still in development, so check sometimes for newest versions.